Mental Math
Place Value and
Patterns
2 Digit Addition or
Subtraction
3 Digit Addition or
Subtraction
Addition and Subtraction
Word Problems
100

72+10

82

100

Complete the pattern

44, ___, 24, ____, 4

34, 14

100

22-18

4

100

127+18

145

100

Rose has 34 photos in a photo album and 41 photos in a box. How many photos does Rose have?

75 photos

200

83+100

183

200

5 tens 9 ones + 4 tens = ___ tens ___ ones = ____

9 tens 9 ones = 99

200

20-12

8

200

136+16

152

200

Marcy had $84 in the bank. She took $39 out of her account. How much does she have in her account now?

$45

300

65+40

105

300

34 tens + 27 tens 

61 tens

300

27+46

73

300

182-59

123

300

Jahsir counted 63 flowers by the door and 28 flowers on the windowsill. How many flowers were by the door and on the windowsill?

91

400

85+42

127

400

Complete the pattern

643, 543, ___, ___, 243

443, 343

400

25-18

7

400

29+148

177

400

Aniyah has 165 seashells. She has 28 more than Ralph. How many seashells does Ralph have?

137

500

127+___=167

40

500

What is the value of 85 tens?

850

500

44+27

71

500

172-48

124

500

Chad bought a shirt for $19 and a pair of shoes for $28 more than the shirt. How much was the pair of shoes?

$47