So, this is a really basic question, but can someone explain to me why "take away" is bad English? I do understand that in some cases it is totally illogical (like when making change), but my daughter seems to gravitate to this language and I cannot quite seem to identify why it is necessarily inappropriate in a question like "There were 12 pieces of candy and Sam took 7, how many were left for Sally?"

Hi, Kelly.

Good question! The terms 'take away' will work to help the child understand what process is taking place. However, the 'formal' wording - which your daughter will need to learn (especially if she will be taking any of the standardized tests) is subtraction.

My kids did the exact same thing - especially when they were starting math. I would allow them to say 'take away' but would follow up with 'which is also called subtraction'. After a while, I would require them to say that as well, and eventually, they didn't say 'take away' at all.

I hope that helps! If you have any further questions, please do not hesitate to repost here or email RightStart Math directly at info@rightstartmath.com.

Have a great day!
Rachel