Question

10 + 10 + 10 + 20 + 30 = ?

Answer 1

10+10+10+20+30=80

k cho mình nha!

Answer 2

10+10+10+20+30=88

Answer 3

10  + 10 + 10 + 20 + 30 = 80

Answer 4

10+10+10+20+30=80

Answer 5

10+10+10+20+30=80

Answer 6

10 + 10 + 10 + 20 + 30 = 80

hãy * cho mình nha

Answer 7

10 + 10 + 10 + 20 +30

= 10 x 3 + 20 +30 

=30 + 20 +30

= 30 x2 +20

= 60 + 20 

= 80

Answer 8

10 + 10 + 10 + 20 + 30 = 80 

Answer 9

10+10+10+20+30=80