Adding/Subtracting Within 100

Front

What is addition?

Back

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

Tags

CCSS.1.OA.A.1

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Tags

CCSS.2.NBT.B.7

Front

What does it mean to lose something in math?

Back

To lose something in math means to subtract that amount from the total.

Tags

CCSS.2.OA.A.1

Front

If you have 34 and lose 21, how do you find out how much you have left?

Back

You subtract 21 from 34.

Tags

CCSS.2.OA.A.1

Front

What is the sum of 12 and 42?

Back

The sum is 54.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you find the difference between two numbers?

Back

You subtract the smaller number from the larger number.

Tags

CCSS.2.OA.A.1

Front

What is 73 minus 21?

Back

The answer is 52.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

If you have 52 books and get 16 more, how do you find the total?

Back

You add 16 to 52.

Tags

CCSS.2.NBT.B.6

Front

What is 54 minus 22?

Back

The answer is 32.

Tags

CCSS.2.NBT.B.5

Front

What is a word problem in math?

Back

A word problem is a math question written in words that requires you to use math to find the answer.

Tags

CCSS.2.OA.A.1