14. Реши выражения.

1) 8 ⋅ 7 = 56. 2) 7 - 9 = -2. 3) 8 ⋅ 6 = 48. 4) 15 ÷ 3 = 5. 5) 54 ÷ 9 = 6. 6) 14 ÷ 2 = 7. 7) 63 ÷ 9 = 7. 8) 20 ÷ 4 = 5. 9) 49 ÷ 7 = 7. 10) 85 - (46 + 18) = 85 - 64 = 21. 11) 27 + (40 - 12) = 27 + 28 = 55. 12) 94 - (39 + 17) = 94 - 56 = 38.