Addition
Subtraction
Place Value
Rounding
100

7+3=?

10

100

3-1=?

2

100

Which number is in the 10's place? 423

2

100

43

40

200

10+8=?

18

200

9-8=?

1

200

What number is in the hundreds place? 456

4

200

68

70

300

8+8=?

16

300

12-6=?

6

300

What number is in the one's place? 657

7

300

123

120

400

9+4=?

13

400

12-7=?

5

400
What number is in the tens place? 43

4

400

178

180

500

6+5=?

11

500

15-9=?

6

500
What number is in the ones place? 69

9

500

235

240

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