ADDITION
SUBTRACTION
MULTIPLICATION
DIVISION
ROUNDING
100

12+10=?

22

100

20-10=?

10

100

7x8=?

56

100

77/7

11

100

23 nearest ten 

20

200

37+13=?

50

200

35-11=?

24

200

12x9=?

108

200

99/3

33

200

345 nearest ten

350

300

345+127=?

472

300

237-58=?

179

300

345x5=?

1,725

300

246/2

123

300

6,783 nearest hundred

6,600

400
6,453+278=? 

6,731

400

9,543-3,267=?

6,276

400

27x34=?

918

400

782/2

391

400

54,376 nearest thousand 

54,000

500

8,888+2,345=?

11,233

500

2,689-798=?

1,891

500

56x46=?

2,576

500

9,789/3

3,263

500

456,397 nearest ten thousand 

466,000

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