Question

resolva as expressoes : A- 9 x 2,5 + 2,86 B- 68,9 -5 x 12,23 C-9 x ( 9,3 - 0,344 ) D-(6,282 + 4 ) x 3

Answer 1

a) 9 × 2,5 + 2,86=
     22,5 + 2,86 = 25,36

b) 68,9 - 5 × 12,23=
    68,9 - 61,15 = 7,75

c) 9×(9,3 - 0,344)
    9× 8,956 = 80,604

d) (6,282 + 4) ×3 =
     10,282 × 3 = 30,846