Question

$- 5 \times ( - 4 + 2) =$
$- \frac{3}{4} (0.5 - \frac{1}{6} + \frac{2}{3}) =$
$- 5.4 \div ( - 0.1) \times ( - \frac{1}{3} ) =$
Aiudaa
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Answer 1

Respuestas: a) + 10 ; b) -3/2 ; c) -18

a) -5(-4 + 2) = +20 - 10 = +10

b) -¾(0.5 - ⅙ + ⅔) = -3·0.5/4 + 3/4·6 -3·2/4·3 = -1.5/4 + 1/8 - 6/12 =

= -3/8 + 1/8 - 4/8 = -6/8 = -3/2

c) -5.4÷(-0.1) · (-⅓) = 5.4÷0.1 · (-⅓) = -54·⅓ = -54/3 = -18

Michael Spymore