Add and subtract 6-digit and 5-digit numbers without regrouping worksheet is a great way to help learners become fluent with the concept of addition and subtraction. In this worksheet, students must find the missing number using the relationship between addition and subtraction. To solve add and subtract 6-digit and 5-digit numbers without regrouping worksheet, they do not need to regroup the numbers. This worksheet is about practicing the column method in which numbers are written one on top of another. In this method, students use their place value understanding to solve the problems.