Lesson Worksheet: Column Addition of Three-Digit Numbers Mathematics

In this worksheet, we will practice adding two three-digit numbers with and without regrouping and record the calculation in columns.


Find the answer to 783+156.


Use place value blocks to show how to add 342 and 183.



Fill in the blank: All of the following column additions are correct except .

  • A
  • B
  • C
  • D


Add 544 and 438. Use place value blocks if you need to.

Hint: Do you need to regroup ones or tens?


A teacher asked their students to find the sum of 216 and 117 using column addition, where the answers of three of their students Nabil, Karim, and Ramy were as follows.

Who is correct?

  • ARamy
  • BKarim
  • CNabil


Which number is 468 more than 421?


Add 40 to 251.

Use the place value blocks if you need to.

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