Add a one-digit number to a three-digit number: word problems: Example question
30 October 2026
Adding a one-digit number to a three-digit number can feel tricky at first, especially when it appears in a word problem. The example below shows a clear way to break the problem down into simple steps, so your child can see how to approach these questions with confidence.
Example question
Sam has 246 stickers. She gets 7 more stickers from her friend. How many stickers does Sam have now?
Step 1: Write the numbers you need to add. 246 and 7.
Step 2: Add the ones. 6 + 7 = 13. Write 3 in the ones place. Carry over 1 to the tens.
Step 3: Add the tens. 4 + 1 (carried) = 5. Write 5 in the tens place.
Step 4: Add the hundreds. 2 stays the same. Write 2 in the hundreds place.
So, 246 + 7 = 253.
Sam has 253 stickers now.
Key insight: When the ones add up to more than 9, remember to carry to the next column.
Click or tap on the number line to answer
After working through this example, your child will spot when to carry over and how to set out their working. This is the type of question they can expect to practise next, helping them get ready for more word problems just like this.
