Use models to subtract from three-digit numbers - without regrouping: Example question
30 October 2026
If your child is learning to subtract three-digit numbers, using models can make the process more visual and less daunting. This step-by-step example shows how to break down the calculation without needing to regroup, helping children see exactly what happens to each place value.
Example question
Subtract 432 from 765 using models (no regrouping).
Step 1: Show 765 with models.
7 hundreds blocks.
6 tens rods.
5 ones cubes.
Step 2: Subtract 4 hundreds from 7 hundreds.
Take away 4 hundreds blocks.
3 hundreds blocks are left.
Step 3: Subtract 3 tens from 6 tens.
Take away 3 tens rods.
3 tens rods are left.
Step 4: Subtract 2 ones from 5 ones.
Take away 2 ones cubes.
3 ones cubes are left.
Step 5: Count what is left. Hundreds: 3 (300) Tens: 3 (30) Ones: 3 (3)
The answer is 333.
| Place Value | Start | Subtract | Left |
|---|---|---|---|
| Hundreds | 7 | 4 | 3 |
| Tens | 6 | 3 | 3 |
| Ones | 5 | 2 | 3 |
After following this example, your child will recognise how to use models to subtract from three-digit numbers without regrouping. They can now practise similar questions to build confidence and accuracy.
