Addition
Subtraction
True/False
Word Problems
Mental Math Strategies
100

32 + 24

56

100

47 − 23

24

100

8 ones + 6 tens = 68

true

100

Lily had 22 crayons. Her teacher gave her 13 more. How many crayons does Lily have now?

22 + 13 = 35

100

Solve using a mental math strategy (the arrow way, number bonds, or tape diagram).

24 + 30

54

200

52 + 38

90

200

70 − 38

32

200

27 + 41 = 20 + 60

false

68 = 70

200

There were 32 balloons at the party. 11 balloons popped. How many balloons are left?

32 − 11 = 21

200

Solve using a mental math strategy (the arrow way, number bonds, or tape diagram).

48 − 15

33

300

46 + 18

64

300

56 − 28

28

300

84 − 29 = 80 − 25

true

55 = 55

300

A class collected 27 cans on Monday and 36 cans on Tuesday. How many cans did they collect in total?

27 + 36 = 63

300

Solve using a mental math strategy (the arrow way, number bonds, or tape diagram).

32 + 61

93

400

167 + 22

189

400

134 − 29

105

400

68 − 13 = 32 + 15

false

55 = 47

400

There were 47 magazines on Shelf A and 82 Magazines on Shelf B. How many more magazines were on Shelf B than Shelf A?

82 − 47 = 35

400

Solve using a mental math strategy (the arrow way, number bonds, or tape diagram).

72 − ______ = 44

28

500

214 + 59

273

500

254 − 37

217

500

46 + 28 = 92 − 18

true

74 = 74

500

Jose sold 164 books in the morning.
He sold 38 more books in the afternoon. How many books did he sell?

164 − 38 = 126

500

Solve using a mental math strategy (the arrow way, number bonds, or tape diagram).

80 → ______ → 58

  -20             -2

80 → __60__ → 58

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