Addition (easy)
Addition (medium)
Addition (hard)
Subtraction (easy)
Multiplication (easy)
100

6+3

9

100

25+33

58

100

152+28

180

100

6-3

3

100

2x4

8

200

8+10

18

200

72+13

85

200

175+175

350

200

11-11

0

200

6x5

30

300

0+1+5

6

300

12+13+14

39

300

2,002+630

2,632

300

16-9

7

300

4x9

36

400

10+10+9

29

400

49+51

100

400

4,643+338

4,981

400

19-14

5

400

0x12

0

500

1+100+0

101

500

19+97

116

500

1,936+1,109

3,045

500

20-10-5

5

500

8x8

64

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