Subtract a one-digit number from a three-digit number: word problems: Example question
30 October 2026

Children often come across questions where they need to subtract a one-digit number from a three-digit number in word problems. Helping your child understand how to break down these problems step by step builds their confidence with subtraction.

Example question
There are 243 apples in a basket. If 7 apples are taken out, how many apples are left?
Step 1: Start with 243 apples. Take away 7 apples.
Step 2: Write the subtraction: 243 - 7 =?
Step 3: Look at the ones. 3 - 7. We cannot do this, so borrow 1 ten from the tens place.
Step 4: The tens digit is now 3 (because we borrowed). Add 10 to the ones: 3 + 10 = 13.
Step 5: Subtract the ones. 13 - 7 = 6.
Step 6: Subtract the tens. 3 - 0 = 3.
Step 7: The hundreds digit stays 2.
The answer is 236.
There are 236 apples left in the basket.
Click or tap on the number line to answer
After working through this example, your child will recognise how to handle similar subtraction word problems, even when borrowing is needed. They are now ready to practise more questions just like this.



