Worksheet: Column Addition of Three-Digit Numbers: Regroup Tens

In this worksheet, we will practice adding two three-digit numbers when we have to regroup tens and record the calculation in columns.

Q1:

Emma used place value blocks to show how to add 383 and 574.

What is the sum?

Q2:

Find the answer to 783+156.

Q3:

Calculate the following: 671+93

Q4:

Jacob and Mason are trying to add 375 and 572. Jacob says the result is 947, while Mason says the result is 848. Which one of them is right?

  • AJacob
  • BMason

Q5:

Find the following:

376+243

Q6:

Use column addition to find 256+472.

Q7:

Look at this question.

Will we regroup when finding the sum?

  • ANo
  • BYes, we will regroup 10 tens into a hundred.
  • CYes, we will regroup 10 ones into a ten.

What is 371+498?

Q8:

Find the sum.

Q9:

Jackson collected 146 marbles, while Anthony collected 172 marbles. What is the total number of marbles that they collected together?

Q10:

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

342+183

Q11:

Add 452 and 72 using place value blocks.

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