Question

5. Calculati: 1) -7+7(-2) – 4-(-18):(-3) -(-5); 2)4[-44-(-25).(-4)]: 24-(-9-11): 1-6 + 1];
3) -3 + [36-(-12).3+(-6+ 2).(-13 - 8)]|-2 +1-8+31];
4) 1-2-(-3) -{-22 +3.[(-4)2: (-2)2 – 34:(-3)2 + (-5–7):(-3)]};
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Answer 1

Explicație pas cu pas:

-7+7(-2) – 4-(-18):(-3) -(-5)=-7-14-4+18:(-3)+5=-21-4-6+5=-26