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addition
multiplication
subtraction
100

15 + 3 =

15 + 3 = 18

100

3 x 2 = 

3 x 2 = 6

100

30 - 10 =

30 - 10 = 20 

200

90 + 1 =

90 + 1 = 91

200

5 x 3 =

5 x 3 = 15

200

7 - 4 =

7 - 4 = 3

300

1 + 2 =

1 + 2 = 3


300

10 x 5 = 

10 x 5 = 50

300

8 - 5 =

8 - 5 = 3

400

9 + 20 =

9 + 20 = 29

400

3 x 7 =

3 x 7 = 21

400

5 - 2 =

5 - 2 = 3

500

3 + 10 =

3 + 10 = 13

500

4 x 3 = 

4 x 3 = 12

500

0 - 1 =

0 - 1 = 0