Question

3 de la pagina 118
Clasa a VI - a
Va roog cine știe dau coroană este super
urgent :( ​

Answer 1

Răspuns:

a)-7,5

b)-31

c)-4

d)15/92

e)-0,9

f)0,1

g)-4/3

h)-3

Explicație pas cu pas:

Answer 2

Explicație pas cu pas:

a)

$5 \times ( - 1.5) = - 7.5$

b)

$- 0.031 \times 1000 = - 31$

c)

$- 0.6 \times \frac{20}{3} = - \frac{6 \times 2}{3} = - 4$

d)

$- 2.5 \times ( - \frac{3}{46}) = \frac{7.5}{46} = \frac{15}{92}$

e)

$- 0.25 \times 3.6 = - 0.9$

f)

$- 1.25 \times 0.4 \times ( - 0.2) = - 0.5 \times ( - 0.2) = 0.1$

g)

$2 \frac{1}{4} \times ( - \frac{16}{27} ) = - \frac{9}{4} \times \frac{16}{27} = - \frac{4}{3}$

h)

$- 1.2 \times ( - \frac{5}{6}) \times ( + 2.1) \times ( - \frac{10}{7}) \\ = - 1 \times 2.1 \times \frac{10}{7} \\ = -2.1 \times \frac{10}{7} = -3$