Question

calcule as expressões
(a) 7 -10+(2-5)=
c) [100-(5-3)]÷2=
b) 2-(16÷2+3)=
d 7+[5÷(10-5)+2×2]

Answer 1

a)
7 - 10 + (2-5)
-3 - 3= -6

b)
[100 - (5-3)]/2
(100 - 2)/2
98/2=49

c)
2- (16/2 +3)
2 - (8 + 3)
2 - 11= -9

d)
7 + [5/(10-5) + 2x2]
7 + [1 + 4]
7 + 5 = 12