Question

calcule o valor das expressões:
b) 7,5 . 3,8+3,5 . 0,5
c) 5,75 . 2,05-3,01 . 2,04
d) 2 . (3,15-2,08)+4 . (2,04 3,05

Answer 1

a. 28,5+1,75=30,25

b. 11,78-6,14=6,64

c. (6,3-4,16)+ (16,16-12,2)

2,14+3.96

6.1