Explicație pas cu pas:
a)
[tex]5 \times ( - 1.5) = - 7.5[/tex]
b)
[tex] - 0.031 \times 1000 = - 31[/tex]
c)
[tex] - 0.6 \times \frac{20}{3} = - \frac{6 \times 2}{3} = - 4 [/tex]
d)
[tex] - 2.5 \times ( - \frac{3}{46}) = \frac{7.5}{46} = \frac{15}{92} \\ [/tex]
e)
[tex] - 0.25 \times 3.6 = - 0.9[/tex]
f)
[tex] - 1.25 \times 0.4 \times ( - 0.2) = - 0.5 \times ( - 0.2) = 0.1[/tex]
g)
[tex]2 \frac{1}{4} \times ( - \frac{16}{27} ) = - \frac{9}{4} \times \frac{16}{27} = - \frac{4}{3} \\ [/tex]
h)
[tex] - 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 [/tex]
