Question

1.–[–(–4 +6) (–3) – (–2 –5 +3)] –10 + 8 +15

2.–{–2–[3+(6+2.4–5)]}–{–5–[8 –(9+ 3.2 –7)]}

Answer 1

1) -55 2)

+12

Explicación paso a paso: