Add and Subtract 2 digit Numbers

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 taking one number away from another.

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CCSS.2.NBT.B.7

Front

What does 'altogether' mean in math?

Back

'Altogether' means the total amount when you combine numbers.

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CCSS.1.OA.A.1

Front

If you have 27 and you add 15, what is the total?

Back

42

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CCSS.2.OA.A.1

Front

How do you find out how many more?

Back

To find out how many more, subtract the smaller number from the larger number.

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CCSS.2.OA.A.1

Front

What is the total of 38 and 45?

Back

83

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

If you have 52 cards and put 28 in one pile, how do you find the rest?

Back

Subtract 28 from 52 to find how many are left.

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CCSS.2.OA.A.1

Front

What is the result of 52 - 28?

Back

24

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What does 'voted for' mean?

Back

'Voted for' means to choose or select a person or option in a poll.

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CCSS.RI.3.10

CCSS.RI.4.10

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

Front

How do you add two-digit numbers?

Back

Line up the numbers by place value and add each column, starting from the right.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5