ЧАСТИНА 2 - Вправи 1 - 100 » 36

Обчисліть. а. –2 • (–10) – (–5) = 20 + 5 = 25; б. 9 : (–3) – (–8) = –3 + 8 = 5; в. (27 : (–9)) • (–5) = –7 • (–5) = 35; г. 12 • (–4 – (–2)) : 12 = 12 • (–4 + 2) : 12 = –24 : 12 = –2; д. –4 • (11 + (–8)) – (–9) = –4 • 3 + 9 = –12 + 9 = –3; е. 11 – 20 : (–4) + (–7) = 11 – (–5) – 7 = 16 – 7 = 9.