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100

2 + 45 =

47

100

171/3 =

57

100

634 - 53 =

581

100

2 x 7 =

14

100

1 + 1 =

2

200

21 + 42 =

63

200

200/4 =

50

200

636 - 6 =

630

200

3 x 15 =

45

200

315/14 =

22.5

300

540 + 90 =

630

300

630/7 =

90

300

213 - 6 =

207

300

201 x 3 =

603

300

630-46 =

584

400

630 + 22 =

652

400

2,520/35 =

72

400

404 - 201 =

203

400

21 x 48 =

1,008
400

26 x 45 =

1,170

500

21 + 24 =

45

500

400/2 =

200

500

171 - 58 =

113

500

22 x 43 =

946

500

4,536-2,315=

2,221