1. Вычисли. 42:6+81:9 72:9+72:8 36:4-18:2 27:9+41 61-48:8 36+8・8 7・6-9・4 9.6-45:9 8.4+56:7

1. Вычислим: * 42 : 6 + 81 : 9 = 7 + 9 = 16 * 72 : 9 + 72 : 8 = 8 + 9 = 17 * 36 : 4 - 18 : 2 = 9 - 9 = 0 * 27 : 9 + 41 = 3 + 41 = 44 * 61 - 48 : 8 = 61 - 6 = 55 * 36 + 8 × 8 = 36 + 64 = 100 * 7 × 6 - 9 × 4 = 42 - 36 = 6 * 9 × 6 - 45 : 9 = 54 - 5 = 49 * 8 × 4 + 56 : 7 = 32 + 8 = 40