# Worksheet: Subtracting Tens from Three-Digit Numbers

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

**Q5: **

Look at how Charlotte broke apart a number to subtract.

First, subtract the tens.

.

Then, add the leftover tens to 108 to find .

**Q7: **

A company has 297 clerks. The owner decides to fire 70 clerks. How many clerks remain in the company?

**Q9: **

James’s salary is $472. If the manager decides to deduct $20 from his salary, how much will his new salary be?

**Q10: **

A teacher has $217 and he decides to buy new reading books for his class. The books costs $10. How much money will he have left?