Practice Multi-Digit Addition and Subtraction in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
Adding and subtracting numbers with three or more digits using the standard algorithm, which involves regrouping (carrying) in addition and borrowing in subtraction.
Imagine stacking blocks in columns for ones, tens, and hundreds. When the ones column adds up to more than 9, you bundle 10 ones into 1 ten and carry it over—just like exchanging 10 pennies for a dime.
Showing a random 20 of 50 problems.
Example 1
mediumFind the missing number: .
Example 2
mediumFind the missing number: .
Example 3
mediumA theater seats people. tickets are sold. How many seats remain?
Example 4
easySubtract: .
Example 5
mediumA train holds passengers. After a stop, get off and get on. How many passengers are now on the train?
Example 6
easySubtract: .
Example 7
easySubtract: .
Example 8
easyAdd: .
Example 9
easyCalculate using column addition.
Example 10
easyAdd: .
Example 11
mediumA school library has 1,250 books. They donate 387 books. How many books remain?
Example 12
mediumAdd: .
Example 13
hardA bus carries students. Three buses leave the school. How many students go on the trip if no bus is fully loaded — bus 1 has , bus 2 has , bus 3 has students?
Example 14
hardFind and digits in the puzzle: .
Example 15
challengeUsing each of the digits once, form two two-digit numbers whose SUM is as large as possible. What is that sum?
Example 16
mediumAdd: .
Example 17
mediumFind the missing digit: .
Example 18
mediumSubtract: .
Example 19
easyA bakery made cupcakes on Monday and on Tuesday. How many cupcakes total?
Example 20
challengeA number minus equals . Then is added. What is the final value?