Mathematics Grade 9 15 min

Add two two-digit numbers - with regrouping

Add two two-digit numbers - with regrouping

What you'll learn

  • Solve two-digit addition problems with regrouping, showing the carried-over ten in the tens column, with 80% accuracy.
  • Explain, using drawings or base-ten blocks, how to regroup ten ones into one ten when adding two-digit numbers.
  • Identify when regrouping is needed in a two-digit addition problem by recognizing that the ones column adds up to 10 or more.
  • Add the ones digits of two two-digit numbers and determine if the sum is greater than 9.

Tutorial Preview

1

What is 47 + 25?

2

What is 68 + 12?

3

What is 86 + 39?

Sample Practice Questions

Easy
What is 18 + 13?
0.31
1.21
2.30
3.111
Easy
What is 25 + 17?
0.32
1.42
2.312
3.43
Easy
What is 16 + 14?
0.20
1.210
2.30
3.31

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Frequently asked questions

What grade level is "Add two two-digit numbers - with regrouping"?

Add two two-digit numbers - with regrouping is a Grade 9 Mathematics lesson on ExcelOS.

What will I learn in Add two two-digit numbers - with regrouping?

You'll be able to: Solve two-digit addition problems with regrouping, showing the carried-over ten in the tens column, with 80% accuracy; Explain, using drawings or base-ten blocks, how to regroup ten ones into one ten when adding two-digit….

Is "Add two two-digit numbers - with regrouping" free to practice?

Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.

How many practice questions are included with Add two two-digit numbers - with regrouping?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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