# Number-Related Problems

Of all the English expressions listed in Number-related Problems' page, the part where many made a mistake is in the Subtraction, particularly the statement "*x* less than *y*" which is, in Algebraic expression, *y* - *x*. Many students made a mistake in writing this into *x* - *y*, which is wrong, because like division, subtraction is not commutative.

- 245 reads

## Add new comment