Question

solo respuestas

y doy corona si me ayudas​

Answer 1

1.- CALCULA:

(+5)*(-3) = -15

(+7)*(-6) = -42

(-9)*(-5) = 45

(-8)*(-7) = 56

(+5)*(-10) = -50

(-7)*(-12) = 84

(+13)*(-2) = -26

(-16)*(-3) = 48

(-14)*(-5) = 70

(-17)*(+8) = -136

(+19)*(-7) = -133

(-20)*(-8) = 160

2.- CALCULA:

[(-3)*(-2)]*(-4) = -24

[(-5)*(+4)]*(-2) = 40

[(-2)*(-8)]*(+5) = 80

(-5)*[(-7)*(-12)] = -420

ESPERO HABERTE AYUDADO :)