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3 + 3 + 3
9
100 - 50 =
50
300 - 200 =
100
4 + 4 + 4 + 4 =
16
1000 - 990 =
10
500 - 250 =
250
10 x 10 =
100
10 / 2 =
5
125 - 25 =
100
2 + 2 + 2 + 2 + 2 =
10
900 - 300 =
600
(7 + 3) X 4 =
40
(10 x 2) + 20 =
40
(50 + 50) - 50 =
50
2 x 3 x 2 =
12
5 x 5 x 2 =
50
