Question

Efectuati
a) (-15) +50 +15
b) (-36) + (-64 4150
C) 12-(-8)
d) 15-30
e) (-12). (-3) + (-1/2
f) 21 : (-7)+(-2/3​

Answer 1

Explicație pas cu pas:

a) (-15)+50+15=35+15=50

c) 12-(-8)=12+8=20

d) 15-30= -15

e) (-12)×(-3)+( -1÷ 2)= 36- (-1/2)=72-1 supra 2=71 supra 2

f) 21:(-7)+(-2/3)=

$\frac{ - 9 - 2 }{3} = - \frac{11}{3}$