Question

Calculati: [3,25*10^2-(1,5)^2*100]:0,25.

Answer 1

$( \frac{325}{100} \times 100 -( { \frac{15}{10}) }^{2} \times 100) \div \frac{25}{100}$


$(325 - \frac{225}{100} \times 100) \times \frac{100}{25}$
$(325 - 225) \times \frac{100}{25}$
$100 \times \frac{100}{25}$


$\frac{10000}{25} = 400$

Answer 2

[ 3,25 × 10² - ( 15/10)²× 100 ] : 25/100 =
= ( 325 - 225/ 100    ×    100 ): 1/4 =
= ( 325 - 225 ) × 4 =
= 100 × 4 = 400