Question

[sakura]

tính nhanh

10 + 10 x 2 + 10 x 2 + 10

Answer 1

[Aira Lala]

= 60 k mk mk k lại cho

Answer 2

[sakura]

10 + 10 x 2 + 10 x 2 + 10

= 10 x (2 + 2 + 1 + 1)

= 10 x 6

= 60