Addition & Subtraction

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Lesson

Subtracting decimal numbers to 100 using the Standard Algorithm

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Adding decimal numbers to 100 using the Standard Algorithm

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Addition & Subtraction to 1,000 using standard algorithm

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Subtraction with numbers up to 20

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Estimate the difference to 100,000

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Estimate the sum up to 10,000

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Subtracting to 10,000 using the standard algorithm

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Adding to 10,000 using the standard algorithm

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Partial differences subtraction to 1,000 with regrouping

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Partial differences subtraction to 1,000 without regrouping

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Subtracting to 100,000

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Subtraction to 100,000 with simple numbers

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Subtracting from a ten-thousands number

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Subtraction to 10,000 without regrouping

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Subtraction to 10,000 with simple numbers

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Subtracting from a thousands number

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Automaticity subtraction to 20

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Automaticity addition to 20

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Subtraction through 1,000

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Addition to 100,000

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Addition to 100,000 with simple numbers

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Addition to 10,000 without regrouping

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Addition to 10,000 with simple numbers

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Addition through 1,000

Tool

Math Problem Generator

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Automaticity subtraction to 100

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Automaticity subtraction to 20 crossing tens

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Automaticity subtraction to 20 without crossing tens

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Automaticity subtraction to 10

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Automaticity addition to 100

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Automaticity addition to 20 crossing tens

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Automaticity addition to 20 without crossing tens

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Automaticity addition to 10

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Mental math + - to 100

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Fill in the blank problems + - to 1,000

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Fill in the blank problems + - to 100

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Fill in the blank problems + - to 20

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Fill in the blank problems + - to 10

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Word Problems with addition & subtraction to 100

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Word Problems with addition & subtraction to 20

Tool

Digital Dice

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Subtraction to 1,000 crossing tens and hundreds

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Subtraction to 1,000 crossing hundreds

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Subtraction to 1,000 crossing tens

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Subtraction to 1,000 crossing multiples of ten

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Subtraction to 1,000 from a multiple of 100

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Subtraction to 1,000 without crossing tens or hundreds

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Addition to 1,000 without crossing tens or hundreds

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Addition to 1,000 crossing hundreds

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Subtraction to 1,000 with multiples of ten

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Addition to 1,000 crossing tens

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Addition to 1,000 with multiples of ten

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Addition to 1,000 with crossing tens and hundreds

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Adding to a hundreds number

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Adding using standard algorithm with decimal numbers to the thousandths place

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Subtraction to 1,000 using standard algorithm with regrouping

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Subtraction to 1,000 using standard algorithm

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Addition to 1,000 using standard algorithm with regrouping

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Addition to 1,000 using standard algorithm

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Subtraction with decimal numbers to the hundredths place

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Partial differences subtraction with decimal numbers to the thousandths place

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Partial sums addition with decimal numbers to the hundredths place

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Partial sums addition with decimal numbers to the thousandths place

Tool

Rekenrek/Abacus

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Partial Sums Addition to 1,000

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Multiple routes to numbers up to 20

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Double and half math problems to 20

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On the bus: Recognizing how many added/subtracted to 20

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On the bus: Recognizing addition and subtraction situations

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Addition and subtraction to 20 using related problems

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Addition and subtraction to 20 using fact families

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Recognizing addition and subtraction situations to 20

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Addition and subtraction to 10 using fact families

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Recognizing addition and subtraction situations to 10

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Addition and Subtraction to 10 with 1 or 2

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Estimated and exact difference with decimal numbers with 3 decimal places

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Estimated and exact difference with decimal numbers with 1 and 2 decimal places

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Estimated and exact difference with decimal numbers with 1 or 2 decimal places

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Determine difference between decimal numbers with 1, 2, and 3 decimals

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Subtraction with decimal numbers with 1,2, and 3 decimal places

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Determine the difference between decimal numbers with 3 decimal places

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Subtraction with decimal numbers with 3 decimal places

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Determine difference between decimal numbers with 1 and 2 decimals

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Determine difference between decimal numbers with 1 or 2 decimals places

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Subtraction with decimal numbers with 1 and 2 decimal places

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Subtraction with decimal numbers with 1 or 2 decimal places

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Estimate the difference to 1,000

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Estimate the difference to 100

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Subtraction to 1,000 with three or more numbers

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Subtraction to 1,000 via compensation method

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Subtraction to 1,000 via one more/one less

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Subtraction to 1,000 via simplification

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Subtraction to 1,000 splitting the subtrahend with regrouping

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Subtraction to 1,000 from hundreds numbers

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Determine difference to 1,000

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Subtraction to 1,000 splitting the subtrahend

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Subtracting numbers to a hundreds number

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Subtraction through 100 regrouping tens

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Subtraction through 100 regrouping hundreds as tens

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Subtraction through 100 using tens

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Subtraction to 1,000 with the zero-rule

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Subtraction to 100 with three or more numbers

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Subtraction to 100 via compensation method

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Subtraction to 100 via one more/one less

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Subtraction to 100 via simplification

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Subtraction to 100 with subtrahends >10

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Subtraction to 100 regrouping with subtrahends <10

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Subtraction to 100 by splitting the subtrahend with subtrahends >10

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Subtraction to 100 by splitting the subtrahend with subtrahends < 10

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Determining difference to 100

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Subtraction to 100 by creating an addition problem

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Subtracting numbers to 100 from a tens number

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Subtraction from tens numbers with small differences

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Subtraction to 100

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Subtraction to 100 by tens and ones

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Subtracting numbers to 100 to a tens number

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Subtracting numbers to 100 using tens

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Subtraction to 100 via the zero rule

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Subtraction to 50 with subtrahends >10

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Subtraction to 50 with subtrahends <10

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Number Bond Charts

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Subtraction to 50 with subtrahends >10

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Subtraction to 50 without crossing ten with subtrahends <10

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Subtraction to 30 using simplification

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Subtraction to 30 with regrouping

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Subtraction to 30 without regrouping

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Subtraction to 20 with three or more numbers

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Subtraction to 20 with one more or one less

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Subtraction to 20 via inverse operation

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Subtraction to 20 crossing ten

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Subtraction to 20 with one more or one less, decomposing the second number

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Subtraction to 20 using grouping with three numbers

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Subtraction to 20 on the number line, crossing ten

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On the bus: Subtraction to 20 crossing ten

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Subtraction from 20 with numbers to 20

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Subtracting tens and ones from numbers to 20

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Subtraction to 20 with result of 0 or 1

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Determining difference to 20

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Subtraction to 20 using simplification

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Subtraction to 20 without regrouping

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Subtraction to 20 on the number line

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On the bus: Subtraction to 20

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Recognizing subtraction problems to 20

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Subtraction to 10 with three numbers

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Subtraction to 10 via inverse operation

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Subtraction to 10 using related problems

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Subtraction to 10 with one more or one less

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Subtraction to 10

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Subtraction to 10 on the number line

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Subtraction from 10 with numbers to 10

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Subtraction to 10 with result of 0 or 1

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Subtraction to 10 with 1 or 2

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Subtraction to 10 with rekenrek

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Recognizing subtraction problems to 10

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Subtraction to 10 via bus example

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Subtraction to 5

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Recognizing subtraction problems to 5

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Addition to 100 with round numbers

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Estimated and exact sum with decimal numbers with 3 decimal places

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Estimated and exact sum with decimal numbers with 1 and 2 decimal places

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Estimated and exact sum with decimal numbers with 1 or 2 decimal places

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Addition with decimal numbers with 1, 2, or 3 decimal places

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Addition with decimal numbers with 3 decimal places

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Addition with decimal numbers with 1 and 2 decimal places

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Addition with decimal numbers with 1 or 2 decimal places

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Estimate the sum to 1,000

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Estimate the sum to 100

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Addition to 1,000 via compensation method

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Addition to 1,000 with one more or one less

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Addition to 1,000 via simplification

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Addition to 1,000 with three or more random numbers

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Addition to 1,000 by splitting the second addend

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Addition to 1,000 using grouping with three or more addends

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Addition to 1,000 by splitting the second addend into hundreds, tens, and ones

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Addition to 1,000 with three or more simple numbers

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Addition to 1,000 by counting, with hundreds and tens

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Addition to 1,000 by counting, with hundreds

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Addition through 100 crossing tens

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Addition through 100 without regrouping

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Addition through 100 with tens

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Addition to 100 in tens with the zero rule

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Addition to 100 via compensation method

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Addition to 100 with one more or one less

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Addition to 100 using simplification

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Addition to 100 crossing tens with addends >10

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Addition to 100 crossing ten with addends <10

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Addition to 100 by tens and ones using addends >10

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Addition to 100 by making tens using addends <10

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Addition to 100 with three or more random addends

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Addition to 100 with three or more simple numbers

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Addition to 100 making ten

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Adding to 100 by tens and ones without regrouping

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Addition to 100 without regrouping

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Addition to 100 with tens

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Addition to 100 with the zero-rule

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Addition to 50 with 10, 5, and 1

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Addition to 50 making tens with second addends >10

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Addition to 50 making ten with second addends <10

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Addition to 50 with second addends >10

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Addition to 50 with second addends <10

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Add doubles to 40

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Addition to 30 using simplification

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Addition to 30 making ten

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Addition to 30 without regrouping numbers

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Addition to 30 with repeating addends

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Addition to 20 with three or more addends

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Adding to 20 with 2 or 3 addends

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Adding equal amounts to 20

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Addition to 20 with one more or one less

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Addition to 20 with one more using an addition table

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Adding to 20 swapping addends

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Addition to 20 with doubles and near doubles

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Add doubles to 20

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Addition to 20

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Addition to 20 using grouping with three addends

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Addition to 20 making tens on the number line

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On the bus: Addition to 20 making ten

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Addition to 20 with one more or one less

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Addition to 20 with tens and ones

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Addition to 20

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Addition to 20 using simplification

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Addition to 20

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Addition to 20 on the number line

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On the bus: Addition to 20

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Recognizing addition problems to 20

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Addition to 10 with three addends

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Adding to 10 with 2 or 3 addends

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Addition to 10 swapping addends

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Addition to 10 with one more

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Addition to 10 with one more, one less

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Adding doubles to 10

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Addition to 10

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Addition to 10 on the number line

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Adding to the number 10

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Addition to 10 with 1 or 2 more

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Addition to 10 with the rekenrek

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Recognizing addition problems to 10

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On the bus: Addition to 10

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Addition to 5

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Recognizing addition problems to 5

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Decomposing and composing to the thousands place

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Math automaticity- decomposing 10

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Decomposing and composing to the hundreds place

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Decomposing and composing 100 from round numbers

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Decomposing and composing 1,000

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Math automaticity- decomposing numbers to 10

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Decomposing and composing 100 from random numbers

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Number bond charts to 20

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Decomposing and composing to the tens place

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Number bond charts to 30

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Decomposing and composing numbers to 20

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Decomposing and Composing 20

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Composing to 20

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Decomposing and composing number to 10

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Combining numbers to 10

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Decomposing and composing 2 to 9

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Decomposing and composing numbers to 5

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Composing numbers to 10

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Decomposing numbers to 10

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Coloring decompositions to 10- recognizable objects

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Coloring decompositions to 10- abstract objects

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Addition with decimal numbers up to the hundredths place

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Decomposition and addition up to 10

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Number bond charts to 10

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Decomposing and composing 10