July 2023 1 3 Report
Ayuda xd
Escribe el resultado de las siguientes operaciones combinadas.

a) {7 – [(–20 + 2) ÷ 6 – (+4)] – (10 – 4) ÷ 2} =

b) –2 × 3 + 2{7 – [(–5 + 2) ÷ 3 – (–9)] – (10 – 8) + 8} =

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