145 x 12 =
(5 x 10 ) x 3 =
2600 : 20 =
40 x 22 + 10 x 22 =
1200 : 6 + 36 : 6 =
300: 2 + 50 : 2 + 6 : 2 =
50 x 22 =
100 x 12 + 40 x 12 + 5 x 12 =
1236 : 6 =
356 : 2 =
5 x (10 x 3) =
2600 : 10 : 2 =
