Question

Calcula:
a) (+6) · (−2) = c) (+8): (+2) =
b) (−2) · 3 · (−4) = d) (−40) ∶ (+5) ∶ (−2) =

Answer 1

Respuesta:

Explicación paso a paso:

a) -12

b)24

c)4

d)4

Answer 2

a)

$\left(+6\right)\left(-2\right)\\=-6\cdot \:2\\=-12$

b)

$\left(-2\right)\cdot \:3\left(-4\right)\\\left(-2\right)\cdot \:3=-2\cdot \:3=-6\\=-6\left(-4\right)\\-6\left(-4\right)=6\cdot \:4=24\\=24$

c)

$\mathrm{\frac{\left(+8\right)}{\left(+2\right)}}\\\frac{8}{2}\\=4$

d)

$\left(-40\right)\div \left(5\right)\div \left(-2\right)\\\left(-40\right)\div \left(5\right)=-40\div \:5=-8\\=-8\div \left(-2\right)\\-8\div \left(-2\right)=8\div \:2=4\\=4$