Adding
Subtracting
Multplying
Dividing
Mystery
100

50 + 50

100

100

8,000 - 4,000

4,000

100

40 x 4

160

100

128 / 4

32

100

5 + (9 x 4) - (2 x 3) = 

35

200

125 + 342

467

200

250,000 - 999

249,001

200

500 x 200

100,000

200

6,243 / 3

2,081

200

62

36

300

2,000 + 800 + 50 + 7

2,857

300

7,180 - 4,385

2,795

300

134 x 6

804

300

959 / 9

106 r 5

300

How old is Mr. Kempff

36

400

51,472 + 7,078

58,550

400

600,000 - 399,410

200,590

400

19,873 x 7

139,111

400

940 / 7 

134 r 2

400

Rounded to the nearest hundred, about how man students are in this school?

About 600
500

168,739 + 94,035 + 33,867

296,641

500

138,925 - 47,316 - 23,197

68,412

500

87 x 78

6,786

500

7,534 / 5

1,506 r 3

500

1 + 9 + 8 = 1

13 + 80 + 99 =

ten or 10

M
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