Question

calcule o valor de a) 3+2-4 b) 12+5-8 c) 7-3+5 d) 8-1+2 e) -3+5-2-9

Answer 1

Boa tarde, Thais. :-)

a) 3+2-4 = 5-4 = 1

b) 12+5-8 = 17-8 = 9

c) 7-3+5 = 12-3 = 9

d) 8-1+2 = 10-1 = 9

e) -3+5-2-9 = -14+5 = -9

Answer 2

a) 3+2-4=1
b)12+5-8=9
c)7-3+5=9
d)8-1+2=9
e)-3+5-2-9=-9