# Worksheet: Column Addition of Two-Digit Numbers

In this worksheet, we will practice adding two-digit numbers and record the calculation and any regrouping in columns using the standard algorithm.

**Q1: **

Find two consecutive numbers whose sum is 41.

- A16, 25
- B19, 22
- C20, 19
- D21, 20

**Q2: **

A girl bought a dress for and a pair of shoes for . How much money did she spend?

**Q4: **

Use , , or to fill in the gap: .

- A
- B
- C

**Q5: **

Which number fits in the gap? .

**Q6: **

Find .

*Hint*: Do you have to regroup ones to make a ten?

**Q7: **

Olivia spilled ink on her homework.

Find the covered numbers.

**Q9: **

Find .

*Hint:* Do you have to regroup ones to make a ten?

**Q10: **

Elizabeth is adding 55 and 38.

She added the ones and regrouped 10 ones to make a ten.

Add the tens to finish her work and find .

**Q11: **

Daniel is adding 27 and 35.

He added the ones and regrouped ten ones into a ten.

Add the tens to finish his work and find .

**Q12: **

Find the sum.

*Hint*: Think about what happens when there are more than 10 ones.

**Q16: **

Find the sum.

*Hint*: Add the ones then the tens.

**Q17: **

Find the answer.