Adding Up
Rounding to the Nearest 10
Subtraction
Multiplication
Doubles
100

48+22

70

100

26

What is 20?

100

75-25

What is 50?

100

3x5

What is 15?

100

88

What is 44+44?

200

125+75

200

200

141

What is 140?

200

145-15

What is 130?

200

5x6

What is 30?

200

160

What is 80+80?

300

70+20

90

300

266

What is 270?

300

58-22

What is 36?

300

2x4

What is 8?

300

48

What is 24+24?

400

115+35

150

400

353

What is 350?

400

232-112

What is 120?

400

4x4

What is 16?

400

500

What is 250?

500

125+175

300

500

1267

What is 1270?

500

550-150

What is 400?

500

4x6

What is 24

500

650

What is 325+325?

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