Remainders — Multiply & Divide Pathway
What are remainders?
- Sometimes numbers do not divide exactly.
- The amount left over is called the remainder.
- We write r for remainder: 13 / 4 = 3 r 1.
- The remainder must always be smaller than the divisor.
Example: 17 / 5
- Step 1: How many 5s in 17?
- Step 2: 5 x 3 = 15. That fits.
- Step 3: 17 - 15 = 2 left over.
- Answer: 17 / 5 = 3 r 2.
Your turn
- Try: 23 / 4.
- 4 x 5 = 20. That fits (4 x 6 = 24 is too big).
- 23 - 20 = 3 left over.
- Answer: 23 / 4 = 5 r 3.
Common Mistakes to Avoid
- Writing a remainder bigger than the divisor. The remainder must always be smaller.
- Forgetting to write the "r" symbol. 13 / 4 = 3 r 1, not just 3.
Real-Life Example
You have 17 biscuits to share between 5 friends. 5 x 3 = 15, with 2 left over. So 17 / 5 = 3 r 2. Each friend gets 3 biscuits and 2 are left over.
Extra Support Hints
- Write the times table for the divisor to find the closest answer.
- Subtract to find the remainder: 17 - 15 = 2.