This is a set of worksheets that can be used as a pretest to find out what your children already know about addition of 3 and 4 digit numbers. Or simply use as a class activity. I actually use this for assessment at the end of semester. I have made it on grid paper so the children can learn how to line up the digits correctly to minimise mistakes ..it also has the place value columns labelled.
The sheets are as follows:
1 page of 3 digit sums no regrouping
1 page of 3 digit sums with regrouping
1 page of 4 digit sums no regrouping
1 page of 4 digit sums with regrouping
Both sets have an answer set provided.