Question

5 . calcule mentalmente.

a)10%de850=

b)20%de500=

c)50%de75=

d)1%de520=​

Answer 1

$a)\frac{10}{100} *850=\frac{8500}{100} = 85$

$b)\frac{20}{100} *500=\frac{10000}{100} = 100$

$c)\frac{50}{100} *75 = \frac{3750}{100} =37,50$

$d)\frac{1}{100} *520 =\frac{520}{100} = 5,2$

Answer 2

Explicação passo-a-passo:

$a)0.01 \times 850 = 85$

$0.2 \times 500 = 100$

$c)0.5 \times 75 = 37.5$

$d)0.001 \times 250 = 5.2$