Addition
Subtraction
What's Missing?
Base 10
Read it!
100

13+15

28
100

189-47

122

100

_____ + 10 = 174

164

100

3tens 4ones

34

100
One plus twenty one

121

200

86+45

131

200

186-41 

145

200

_____ - 100 = 81

181

200

1hundreds 2tens 1ones

121
200

Thirty one less than forty two

11

300

74+38

112

300

166-40

126

300

39 + ____ = 82

43

300

1hundreds - 8tens

20

300

Ms. A had 182 marbles but gave away 100. How many does she have now?

82

400

83+106

189

400

56-37

19

400

145 - ___ = 67

67

400

8tens 7ones + 5tens 6ones

1hundred 4tens 3ones

400

Sally went shopping. She spent $86 on groceries and $39 on clothing. How much more did Sally spend on groceries than clothing? 

47

500

154+27

181

500

142-49

97

500

123 -  _______ = 27

96

500

6 tens + 4 ones = 70-_____

6

500

Elian played online for 85 minutes before Christmas and after New Years he played 42 minutes more. How many minutes did he play online during winter break?

127 minutes