Grade 5 · Math · Lesson 4

Multi-Digit Addition and Subtraction

Adding and subtracting large numbers is the same skill you used with smaller numbers, just stacked into more columns. Line up the digits by place value, work from right to left, and regroup whenever a column needs more or less than its place can hold.

What this lesson teaches

1Add multi-digit whole numbers using the standard column algorithm with regrouping
2Subtract multi-digit whole numbers using the standard column algorithm with borrowing
3Borrow across zeros when a place in the minuend has a smaller digit
4Estimate sums and differences to check that an answer is reasonable

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