Addition sort - regrouping or no regrouping

This is a little activity my class did this week. They cut out the headers and the sorting cards and (in small groups or pairs) decided if these are problems that require regrouping or not. They can then solve the problems if you wish.

You could laminate these and the children could write on them with dry-erase pen or you could leave them without laminating and they can write on them (but not use them again!).

They could also be used as prompt cards. You give the child the equation on a card and they must invent a word problem to fit it.

They're free to download from Google Drive by clicking here or on the image below.