Question

10. Calcule:
a)16 - (+9 -14) + (-3 + 5)
b)-(-8) + (-3) - (+5) -8 + (-2) + (+15)
C)- (25-17) - {2-[13 + (-4 - 5)}​

Answer 1

Resposta:

a)16-(+9-14)+(-3+5)

16-(-6)+(+2)

16+6+2

22+2

24

b)-(-8)+(-3)-(+5)-8+(-2)+(+15)

8+(-3)-(+5)-8+(-2)+(+15)

5-5-8-2+15

0-8-2+15

-8-2+15

-10+15

15

c)-(25-17)-{2-{13+(-4-5)}

-8-{2-{13+(-4-5)}

-10-{13+(-4-5)}

-23+(-4-5)}

-23-9

-32