Question

1. (+2) + (–3) + (+3) + (–5) + (–2) = –5
2) (–2) +(–7) +(+3) +(–4) +(–11) = –21

3) (–7) – (– 4) +(–5) + (–10) + (– 2) – (–13) = –7

4) (+8)–(–4)–(+4)–(+10)–(–5)–(–8) = 11

5) –2 + 8 –8 + 10 –20 + 5 – 7 = –14

6) 9–7+11–20+12–23+5–5–12 = –30

Answer 1

entonces no hay que hacer nada ya los comprobe todos con la calculadora v:::::::::::::::::