Question

ex 13. Va rog mult!!! Dau coroana.

Answer 1

salut!
a) o luam de jos in sus!
e=81:3
e=27

d=27×4
d= 108

c=108+30
c= 138

b=138 : 3
b= 46

a=46+17
a=63

b) e=180:30
e=6

d=162:6
d=27

c=27+17
c=44

b=44×2
b=88

a=154-88
a=66

c)e=9×18
e= 162

d=162:6
d=27

c=27-21
c=6

b=6×5
b=30

a=300:30
a=10

d) a=b×4
b=c:5
c=3×d
d=e:4
e=100
=> d=100:4
d=25
c=25×3
c= 75
b=75:5
b=15
a=15×4
a= 60

Sper ca te am ajutat!