July 2023 1 4 Report
2.3 CALCULE operaciones combinadas sencillas.
a) 5 · (– 4) + 2 · (–3) =
b) 20 : (–5) – 8 : (+2) =
c) 2 · (–8) – 3 · (–7) – 4 · (+3) =
d) 6 : (+2) + 5 · (–3) – 12 : (–4) =

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