OPERACIONES COMBINADAS DE ENTEROS

 $(-9+4–12+7–7)\ (-3+5–3+1-4)$  

 $(12-24-36):6$  

 $(4+36–16):(-4)$  

 $(-5+4–3+4)(-5-1)$  

 $(-50+10–7+8+25+10)(-7+3–2+5+12)$  

 $(-2+3–7+8–10)(-4+8+3–10)(-4+5-7+2-1)$  

 $[-3+4–3–(-5+7–6)+1][-6+2–5–(8–4+10–8)]$  

 $[-10+30–(-80+70+10)–7+17]:[4–15+8+(-2+6)–1+5]$  

 $(-1125):(45)$