Частина 2 — Вправи: 1304

1304. Обчисліть, скориставшись розподільним законом:

1) (57 + 2) ∙ (–7) = (57 + 147) ∙ (–7) = 197 ∙ (–7) = –19;

2) (–4,9 – 12) ∙ 2 = (–4,9 – 0,5) ∙ 2 = –5,4 ∙ 2 = –10,8;

3) 15 ∙ (15 – 23) = 15 ∙ (315 – 1015) = 15 ∙ (–715) = –7;

4) 1000 ∙ (–0,1 + 0,01 – 0,001) = 1000 ∙ (–0,091) = –91;

5) (16 – 13) ∙ (–18) = (16 – 26) ∙ (–18) = (–16) ∙ (–18) = 3;

6) –24 ∙ (512 – 34 + 56) = –24 ∙ (512 – 912 + 1012) = –24 ∙ 12 = –12.