Question

cuanto es : a) 10.(-2) + 5 - 5.(6+3) =
b) (-8+5) . 3 + 7 . (4-9) =
c) 8.(-2) . (-3) + 1 -4 . 2 =
d) 5 + (10 - 3 . 4) . 6 =
e) 7 . (-12 + 5 . 2) + 4 =

Answer 1

Respuesta:

coronita :,o????

Explicación paso a paso:

a) 10.(-2) + 5 - 5.(6+3) =

$=10\left(-2\right)+5-5\cdot \:9\\\\=-20+5-5\cdot \:9\\\\=-20+5-45\\\\=-60$

b) (-8+5) . 3 + 7 . (4-9) =

$=-3\cdot \:3+7\left(4-9\right)\\\\=-3\cdot \:3+7\left(-5\right)\\\\=-9+7\left(-5\right)\\\\=-9-35\\\\=-44$

c) 8.(-2) . (-3) + 1 -4 . 2 =

$=48+1-4\cdot \:2\\\\=48+1-8\\\\=41$

d) 5 + (10 - 3 . 4) . 6 =

$=5-2\cdot \:6\\\\=5-12\\\\=-7$

e) 7 . (-12 + 5 . 2) + 4 =

$=7\left(-2\right)+4\\\\=-14+4\\\\=-10$