subtraction mental math

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how many are left after some are taken away.

Tags

CCSS.2.NBT.B.7

Front

What does the minus sign (-) mean?

Back

The minus sign means to subtract. It tells you to take away a number.

Tags

CCSS.7.NS.A.1C

Front

What is the result of a subtraction called?

Back

The result of a subtraction is called the difference.

Front

If you have 10 apples and you give away 3, how many do you have left?

Back

You have 7 apples left. (10 - 3 = 7)

Tags

CCSS.2.OA.A.1

Front

What is 5 - 2?

Back

5 - 2 = 3.

Tags

CCSS.1.OA.A.1

Front

What is 20 - 10?

Back

20 - 10 = 10.

Tags

CCSS.2.OA.A.1

Front

What is 100 - 50?

Back

100 - 50 = 50.

Tags

CCSS.1.NBT.C.5

Front

If you have 15 candies and eat 5, how many candies do you have now?

Back

You have 10 candies left. (15 - 5 = 10)

Tags

CCSS.2.OA.A.1

Front

What is 84 - 39?

Back

84 - 39 = 45.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is 90 - 34?

Back

90 - 34 = 56.

Tags

CCSS.2.NBT.B.5