# Worksheet: Subtracting Ones from Three-Digit Numbers

In this worksheet, we will practice using models to subtract a one-digit number from a three-digit number and investigate which digits in the number change.

**Q2: **

Look at how Daniel broke apart a number to help him subtract.

Subtract the ones: .

Add the leftover ones to 230 to find .

**Q3: **

Look at how Amelia broke apart a number to help her subtract.

Subtract the ones.

.

Add the leftover ones to 460 to find .

**Q5: **

Count in ones to subtract.

**Q6: **

Which number is 5 less than 508?

**Q7: **

A farm contains 354 animals. The owner of the farm sells 3. How many animals are left?

**Q8: **

Calculate .

**Q9: **

A father has $138. He buys his son a gift that costs $7. How much money does the father have left?

**Q10: **

Calculate the following:

**Q11: **

Jennifer buys a notebook that has 109 pages. She completes her assignment in 7 pages. How many blank pages are left in the notebook?

- A116 pages
- B101 pages
- C102 pages
- D103 pages