Addition and Subtraction

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

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CCSS.1.OA.A.1

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

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CCSS.2.OA.A.1

Front

What is a sum?

Back

A sum is the result of adding two or more numbers together.

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CCSS.6.EE.A.1

Front

What is a difference?

Back

A difference is the result of subtracting one number from another.

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CCSS.1.OA.A.1

Front

What does it mean to have 'fewer' of something?

Back

Having 'fewer' means having a smaller number of something compared to another amount.

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CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

Front

If you have 8 + 8, what is the sum?

Back

The sum is 16.

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CCSS.1.OA.C.6

CCSS.2.OA.B.2

Front

If you have 13 + 45, what is the sum?

Back

The sum is 58.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is 70 - 56?

Back

The difference is 14.

Tags

CCSS.2.OA.A.1

Front

If there are 12 skittles in a bowl and 8 in a cup, how many fewer skittles are in the cup?

Back

There are 4 fewer skittles in the cup.

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CCSS.1.OA.A.1

Front

What is the equation for finding an unknown number if the sum is 9?

Back

4 + ? = 9.

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CCSS.1.OA.A.1