Question

Se x = 4,6 × 3,25 e y = 12,5 × 0,03, calcule:
a) x+y =
b)x - y =
c) x : 5 =
d) y × 1,12 =​

Answer 1

$x = 4.6 \times 3.25 = 14.95 \\ y = 12.5 \times 0.03 = 0.375$

a)

$x + y = 14.95 + 0.375 = 15.325$

b)

$x - y = 14.95 - 0.375 = 14.575$

c)

$x \div 5 = 14.95 \div 5 = 2.99$

d)

$y \times 1.12 = 0.375 \times 1.12 = 0.42$