Условие:

Вычислите с объяснением.
7 * 14
22 * 3
9 * 11
19 * 5
4 * 25

7 * 14 = 7 * (10 + 4) = 7 * 10 + 7 * 4 = 70 + 28 = 98
22 * 3 = (20 + 2) * 3 = 20 * 3 + 2 * 3 = 60 + 6 = 66
9 * 11 = 9 * (10 + 1) = 9 * 10 + 9 * 1 = 90 + 9 = 99
19 * 5 = (10 + 9) * 5 = 10 * 5 + 9 * 5 = 50 + 45 = 95
4 * 25 = 4 * (20 + 5) = 4 * 20 + 4 * 5 = 80 + 20 = 100