Question

Resolva as expressões:
A- 5:( 2 x 5 ) + 3
B- 12 - 2 x 4 + 2
C- 6+3 x 9 - 8

Answer 1

5 : (2.5) + 3
 5  + 3
10

1 + 3
2

1 + 6  = 7
    2        2

b)

12 - 2.4 + 2
12 - 8 + 2
4 + 2 
= 6

c)

6 + 3 . 9 - 8
6 + 27 - 8
33 - 8
= 25