01. Calcule cada item a seguir: a) +3 • (–55) d) (+10) • (+17)...
01. Calcule cada item a seguir: a) +3 • (–55) d) (+10) • (+17) g) (–1) • (–1) • (–1) • (–1) • (–1)
b) (–4) • (–20) e) (+3) • (–1) h) (–4 +20) : (–8)
c) (–200) : (–5) f) 14 – (–10 +5 +3) i) [–8 + (–4) • (–3)] : (–1 –1)
b) (–4) • (–20) e) (+3) • (–1) h) (–4 +20) : (–8)
c) (–200) : (–5) f) 14 – (–10 +5 +3) i) [–8 + (–4) • (–3)] : (–1 –1)
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