Вычисли, применяя правило умножения суммы на число: (7+9)*4 (10+9)*5 (20+5)*3 (6+8)*5 (3+10)*6 (30+7)*2 8*(4+9 4*(10+8)

(7 + 9) * 4 = 7 * 4 + 9 * 4 = 28 + 36 = 64.

(10 + 9) * 5 = 10 * 5 + 9 * 5 = 50 + 45 = 95.

(20 + 5) * 3 = 20 * 3 + 5 * 3 = 60 + 15 = 75.

(6 + 8) * 5 = 6 * 5 + 8 * 5 = 30 + 40 = 70.

(3 + 10) * 6 = 3 * 6 + 10 * 6 = 18 + 60 = 78.

(30 + 7) * 2 = 30 * 2 + 7 * 2 = 60 + 14 = 74.

8 * (4 + 9) = 8 * 4 + 9 * 8 = 32 + 72 = 104.

4 * (10 + 8) = 4 * 10 + 8 * 4 = 40 + 32 = 72.

4 * (20 + 1) = 4 * 20 + 4 * 1 = 80 + 4 = 84. 

6 * (5 + 8) = 6 * 5 + 6 * 8 = 30 + 48 = 78.

8 * (10 + 2) = 8 * 10 + 8 * 2 = 80 + 16 = 96.

2 * (30 + 2) = 2 * 30 + 2 * 2 = 60 + 4 = 64.