Reading Number Lines

What is the missing number on the number line?

• 35

• 39

• 43

11-3=8 8+3=11 0+8=8

• 11-3=8

• 8+3=11

• 0+8=8

19-7=12 0+12+7=19 12+7=19

• 19-7=12

• 0+12+7=19

• 12+7=19

9 + 7 = 16

• 9 + 7 = 16

• 16 - 7 = 9

• 9 + 16 = 27

19-1=18

18+1=19

19-18=1

• 19-1=18

• 18+1=19

• 19-18=1

• 11-8=3
• 11-3=8
• 3+8=11

• 2-2=0
• 0+2=2
• 2-0=2

19-1=18 19-18=1 18+1=19

• 19-1=18

• 19-18=1

• 18+1=19

What number should go in the green box?

• 50

• 65

• 70

• 75

What number comes in between?

• 7

• 9

• 20

• 10