Numbering Number Lines

Which number should go in the red box?

• 645

• 690

• 610

• 600

Which number should go in the red box? Notice that the interval is 5.

• 5

• 12

• 7

• 10

Which number should go in the red box?

• 170

• 169

• 160

• 174

Which number should go in the red box?

• 10

• 6

• 8

• 7

Which number should go in the red box?

• 150

• 250

• 100

• 200

Which. number should go in the red box?

• 400

• 325

• 450

• 490

11-3=8

8+3=11

0+8=8

• 11-3=8

• 8+3=11

• 0+8=8

1+10=11 1+11=12 11-10=1

• 1+10=11

• 1+11=12

• 11-10=1

• 19-7=12
• 0+12+7=19
• 12+7=19

9 + 7 = 16

• 9 + 7 = 16

• 16 - 7 = 9

• 9 + 16 = 27