Extension Group

Use the number line: 5 + 5=

• 12

• 15

• 10

Use the number line: 2 + 8=

• 11

• 10

• 19

Use the number line: 3 + 5=

• 8

• 7

• 9

Use the number line: 6 + 2=

• 6

• 4

• 8

Use the number line: 7 + 1=

• 8

• 7

• 10

Where do you start to find 4+3?

• 0

• 1

• 4

• 3

Where did you stop to find 4+3?

• 6

• 8

• 7

• 0

What does this number line show?

• 8+2=10

• 9+1=10

• 7+3=10

• 10+0=10

Where do you start to find 6-2?

• 4

• 2

• 6

• 0

Where did you stop to find 6-2?

• 4

• 1

• 2

• 6