Question

Dau coroana
Calculati :
a.) -15+8-12+13-9=
b.) -16+9-13+17-6=
P.S vreau cu rezolvare

Answer 1

a) -15+8-12+13-9=-15
-15+8=-7
-7-12=-19
-19+13=-6
-6-9=-15
b)-16+9-13+17-6=-9
-16+9=-7
-7-13=-20
-20+17=-3
-3-6=-9

Answer 2

a) -15+8=-7 -12+13=1 -7+1-9=-6-9=-15 b) -16+9=-7 -13+17=4 -7+4-6=-3-6=-9