258+458=?
458 - x = 45
458+249=.......
34-12=........
Viết (theo mẫu) :
458 = 400 + 50 + 8
391 = ...................
273 = ...................
916 = ...................
502 = ...................
760 = ...................
Tìm x,biết: 456<x+234<458
12+09+56+67+90+458+90+23+76=???????
Ai đúng mik tik cho
123-123+123-123+123-123+123=
123+123-123*123/123=
123+123+123+123+123=???
ai nhanh mk tick!