Number Line Subtraction to 20

Front

What is a number line?

Back

A number line is a straight line that shows numbers in order. It helps us see how numbers are related to each other.

Tags

CCSS.2.MD.B.6

Front

What does subtraction mean?

Back

Subtraction means taking away a number from another number.

Tags

CCSS.2.OA.A.1

Front

How do you find the answer to a subtraction problem on a number line?

Back

Start at the first number, then move to the left for the second number.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

What is 10 - 3 on a number line?

Back

7. Start at 10 and move 3 spaces to the left.

Tags

CCSS.2.OA.A.1

Front

What is the result of 5 - 2?

Back

3. You take away 2 from 5.

Tags

CCSS.1.OA.C.6

Front

If you have 8 apples and give away 3, how many do you have left?

Back

5 apples. 8 - 3 = 5.

Tags

CCSS.2.OA.A.1

Front

What does it mean to 'count backwards'?

Back

Counting backwards means to count down from a number, like 5, 4, 3, 2, 1.

Tags

CCSS.1.OA.C.6

Front

What is 15 - 5 on a number line?

Back

10. Start at 15 and move 5 spaces to the left.

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

Front

If you subtract 0 from a number, what happens?

Back

The number stays the same. For example, 7 - 0 = 7.

Tags

CCSS.2.NBT.B.5

Front

What is the smallest number you can subtract from 1?

Back

1. 1 - 1 = 0.

Tags

CCSS.5.NBT.B.7