1. Вычисли: 75:3; 42:3; 88:8; 96:6; 65:5; 39:3; 12×8; 17×3; 47×2; 14×5; 36×2; 16×6; 20×4; 80:20; 50×2; 90:30; 250:5; 270:3; 75:25; 32:16; 76:19; 24:12; 90:18; 52:13; 12×6; 77:7; 24×4; 84:3; 72:12; 84:14.

Вычислим каждое выражение:

1. 75:3 = 25; 42:3 = 14; 88:8 = 11; 96:6 = 16; 65:5 = 13; 39:3 = 13.
2. 12×8 = 96; 17×3 = 51; 47×2 = 94; 14×5 = 70; 36×2 = 72; 16×6 = 96.
3. 20×4 = 80; 80:20 = 4; 50×2 = 100; 90:30 = 3; 250:5 = 50; 270:3 = 90.
4. 75:25 = 3; 32:16 = 2; 76:19 = 4; 24:12 = 2; 90:18 = 5; 52:13 = 4.
5. 12×6 = 72; 77:7 = 11; 24×4 = 96; 84:3 = 28; 72:12 = 6; 84:14 = 6.