Question

7) Calcule o valor das expressões:
a) 10 + (-3)2 = 10 + 9 = 19
b) (-4)2 - 3 =
c) 1 + (-2) =
d) -2 + (-5)2 =
e) (-2)2 + (-3)3 =
f) 15 + (-1)5 - 2 =
g) (-9)2 -2 - (-3) =
h) 5+ (-2)3 + 6 =

Answer 1

a)10+(-3)²= 10+9= 19

b)(4)²-3= 16-3= 13

c)1+(-2)³= 1+(-8)= 1-8= -7

d)-2+(-5)²= -2+25= 23

e)(-2)²+(-3)³= 4+(-27)= 4-27= 23

f)15+(-1)^5-2= 15+(-1)-2= 15-1-2= 15-3= 12

g)(-9)²-2-(-3)= 81-2+3= 81+1= 82

h)5+(-2)³+6= 5+(-8)+6= 5-8+6= -3+6= 3