Завдання 1301 - 1401 » 1301

Обчисліть зручним способом: 1) –0,5 ∙ (–31) ∙ (–2) = –31; 2) 1/5 ∙ (–0,12) ∙ (–10) = 0,24; 3) 2,5 ∙ (–32) ∙ (–0,4) = 32; 4) –2/7 ∙ (–34) ∙ 14 = 136; 5) 11,8 ∙ (–3,324) ∙ 0 = 0; 6) (–5/13) ∙ (–101) ∙ 13/15 = 101/3 = 992/3; 7) –25 ∙ 0,3 ∙ 4 = –30; 8) 11 ∙ (–3) ∙ (–6/55) = 18/5 = 3,6.