In this worksheet, we will practice finding ten more and ten less than a two-digit number using base ten blocks and place value tables.

**Q1: **

Find **10 more** than 20. Use the base ten blocks to help you.

**Q2: **

Find the two-digit number and then find 10 **more**.

Which picture shows 26?

- A
- B
- C

Now, find 10 **more** than 26.

**Q3: **

We can use number bonds to ten to help us find 10 more than any tens number.

If we know that , we also know that .

We have just made the numbers bigger by 10.

Use number bonds to help you find 10 more than 80.

**Q4: **

Nabil writes the number 87 on his chart.

If he finds **10 less**, what will happen in each column?

- AThe tens will go down by 1. The ones will stay the same.
- BThe ones will go down by 1. The tens will stay the same.

Now, find **10 less** than 87. What will the new number be?

**Q5: **

Find 10 more than 37.

- A48
- B38
- C47

**Q6: **

Find 10 more than 89: .

- A100
- B90
- C99

**Q7: **

Find **10 less** than 50. Use the base ten blocks to help you.

**Q8: **

Find the picture that shows **10 less** than 38.

- A
- B
- C

**Q9: **

Fill in the blank: .

**Q10: **

Fill in the blank: .

**Q11: **

What number is missing?

**Q12: **

We want to show that **10 more** than 59 is 69.

How many **more** ten rods should we add to the picture?

**Q13: **

We can use number bonds to ten to help us find 10 more than any tens number.

If we know that , we also know that .

We have just made the numbers 10 times bigger.

Use number bonds to help you find 10 more than 60.

**Q14: **

Farida writes the number 63 on her chart.

If she adds **10 more**, what will happen in each column?

- AThe tens will go up by 1. The ones will stay the same.
- BThe ones will go up by 1. The tens will stay the same.

Now, add **10 more** to 63. What will the new number be?

**Q16: **

49 is 10 less than .

**Q17: **

Find the missing label.

Number | 10 More | |
---|---|---|

3 | 13 | 23 |

- A10
- B10 More
- C10 Less

**Q18: **

Which number is NOT 10 less than 65?

- A75
- B55

**Q19: **

Which number is NOT 10 more than 32?

- A22
- B42

**Q20: **

Let’s think about finding **10 less**.

Which picture shows 37?

- A
- B
- C

Now, find **10 less** than 37.