Вправи 501 - 600 » 556

Обчисли зручним способом: 1) 742 + 39 + 58; 2) 973 + 115 – 273; 3) 832 – 15 – 32; 4) 2 ⋅ 115 ⋅ 50; 5) 29 ⋅ 19 + 71 ⋅ 19; 6) 192 ⋅ 37 – 92 ⋅ 37.

Вправи 501 - 600