Question

Calcule o valor das expressões: (Apresentar o cálculo de cada uma. Se conter somente o resultado final, a questão não será considerada certa): a) ( + 3 ) + ( – 2 ) + ( – 5 ) b) ( – 2 ) – ( + 1 ) – ( + 5 ) c) ( + 4 ) + ( – 2 ) – ( + 3 ) d) ( + 5 ) – ( – 3 ) – ( – 1 ) e) ( + 4 ) + ( – 6 ) – ( + 7 ) – ( – 6 ) + ( + 7 ) f) ( – 3 ) – ( – 5 ) + ( – 6 ) + ( + 8 ) – ( – 4 ) g) (+ 6) + (– 1) + (– 5) + (– 3) h (– 10) – (– 2) – (+ 4) – (– 1) i) 20 + (– 7) + (+ 2) – (+ 4) – (– 1) + (– 5) j) 15 – (– 2) + (– 3) – (– 3) – (– 8) + (– 5) + (– 2)

Answer 1

Resposta:

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