Question

calculati:
a. +4+5+(-14)=
b.-6+2+(-9)
c.-3+(-10)+20+6
d. 2+(-6)+(-9)+13
e.-5+5+(-3)+3
f. -30+100+(-80)+20+(-10)+(-40)​

Answer 1

Răspuns:

$a. +4+5+(-14)=4+5-14=-5\\\\b.-6+2+(-9)=-6+2-9=-13\\\\c.-3+(-10)+20+6=-3-10+20+6=13\\\\d. 2+(-6)+(-9)+13=2-6-9+13=0\\\\e.-5+5+(-3)+3=-5+5-3+3=0\\\\f. -30+100+(-80)+20+(-10)+(-40)=-30+100-80+20-10-40=-40$

Answer 2

Răspuns:

Explicație pas cu pas:

a. +4+5+(-14)= +4+5-14 = -5

b.-6+2+(-9) = -6+2-9 = -13

c.-3+(-10)+20+6 = -3-10+20+6 = +13

d. 2+(-6)+(-9)+13 = 2-6-9+13 = 0

e.-5+5+(-3)+3 = -5+5-3+3 = 0

f. -30+100+(-80)+20+(-10)+(-40)​ = -30+100-80+20-10-40 = -40