November 2018 1 36 Report
6º Calcula quitando los paréntesis directamente

a) – 5 – (– 9) + 15 + (– 13) = – 5 + 9 + 15 – 13 = – 18 + 24 = 6

b) 12 – (+ 15) + (– 8) – 32 + 14 = – 29

c) – (– 23) + 25 + (– 15) – (– 42) = 75

d) 46 + 23 – (– 31) – (+ 25) – 17 = 58

e) – 25 – (– 41) + (– 60) – 14 + 18 = – 40

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