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Rethinking
100

What is 9 × 24?

216

100

1+499

500

100

10÷5

2

100

552-30

522

100

What is 293-223

70

200

What is 17×80?

1360

200

200+2,456,981

2,457,181

200

600÷20

30

200

23-15

8

200

60-57

13

300

What is 43×53

2279

300

369+1,083,596

1,083,965

300

400÷2

200

300

200-100

100

300

What is 89-39

50

400

What is 57×71

4047

400

378+618

998

400

300÷1

100

400

609-309

300

400

What is 1000-500

500

500

What is the same number times the same number?

109×109

11881

500

111+890

1001

500

400÷1

400

500

209-207

2

500

What is 10000-5000

5000