7 * (10 + 4) = 7 * 10 + 7 * 4 = 70 + 28 = 98;
8 * (5 + 3) = 8 * 8 = 64;
6 * (20 + 5) = 6 * 20 + 6 * 5 = 120 + 30 = 150;
19 * (7 + 3) = 19 * 10 = 190.
Условие:
Вычисли удобным способом.
7 * (10 + 4)
8 * (5 + 3)
6 * (20 + 5)
19 * (7 + 3)
Условие:
Вычисли удобным способом.
7 * (10 + 4)
8 * (5 + 3)
6 * (20 + 5)
19 * (7 + 3)
7 * (10 + 4) = 7 * 10 + 7 * 4 = 70 + 28 = 98;
8 * (5 + 3) = 8 * 8 = 64;
6 * (20 + 5) = 6 * 20 + 6 * 5 = 120 + 30 = 150;
19 * (7 + 3) = 19 * 10 = 190.