Hundreds Chart
Number Line
Compen-
sation
sation
Number Line
Word Problems
100
WHAT IS 25-5?
ANSWER IS 20
100
Go forward on the number line to show: 35-15
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15 (+10) 25 (+10) 35
ANSWER: 20
100
Show either compensation to find the answer:
15-5
15 - 5 15 - 5
+5 +5 OR +5
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20 - 10 15 - 10 = 5 +5
ANSWER: 10
100
Go backwards on the number line to show: 16-6
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10 (-6) 16
ANSWER: 6
100
Cylus has 8 pokemon cards. He gives away 2 pokemon cards. How many pokemon cards does he have left? Show the math equation:
____ - ____ = ____
8-2=6
ANSWER: Cylus has 6 pokemon cards left
200
WHAT IS 45-10?
ANSWER IS 35
200
Go forward on the number line to show 42-11:
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11 (+10) 21 (+10) 31 (+10) 41 (+1) 42
ANSWER: 31
200
Show either compensation to find the answer:
46-28
46 - 28 46 - 28
+2 +2 OR +2
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48 - 30 46 - 30 = 16 +2
ANSWER: 18
200
Go backwards on the number line to show: 42-12
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30 (-2) 32 (-10) 42
ANSWER: 30
200
Jaylis has 4 pink toys. She also has 10 purple toys. She gives Nicholas 6 toys. How many toys does she have left? Show the two-step math equations.
___ + ___= ___
___ - ___ = ___
4+10=14
14-6= 8
ANSWER: Jaylis has 8 toys left
300
WHAT IS 85-65?
300
Go forward on the number line to show 68-33:
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33 (+10) 43 (+10) 53 (+10) 63 (+5) 68
ANSWER: 35
300
Show either compensation to find the answer:
21- 12
21 - 12 21 - 12
+8 +8 OR +8
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29 - 20 21 - 20 = 1 +8
ANSWER: 9
300
Go backwards on the number line to show: 85-31
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54 (-1) 55 (-10) 65 (-10) 75 (-10) 85
ANSWER: 54
300
Adriel has 15 rocks. 6 of those rocks are circles. 2 are sharp. The rest are chalk rocks. How many chalk rocks does Adriel have?
6+2 = 8
15-8 = 7
ANWER: Adriel has 7 chalk rocks.
400
WHAT IS 92-47?
THE ANSWER IS 45
400
Go forward on the number line to show 99-15:
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15 (+80) 95 (+4) 99
ANSWER: 84
400
Show either compensation to find the answer:
99-29
99 - 29 99 - 29
+1 +1 OR +1
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100 - 30 99 - 30 = 69 +1
ANSWER: 70
400
Go backwards on the number line to show: 53-48
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5 (-8) 13 (-40) 53
ANSWER: 5
400
Mason has 27 stickers more than Carlos. Mason has 45 stickers. How many stickers does Carlos have?
(Hint: Backwards Number Line)
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18 (-7) 25 (-20) 45
ANSWER: Carlos has 18 stickers