How to explain multiply a one-digit number by a two-digit number in multiplication & division methods to your student: Example question
30 October 2026
Multiplying a one-digit number by a two-digit number is a key skill for children preparing for the 11+. It helps them break down bigger problems into simple steps, building confidence with numbers.
Example question
Multiply 7 by 24.
Step 1: Break 24 into tens and ones. 24 = 20 + 4
Step 2: Multiply 7 by 20. 7 × 20 = 140
Step 3: Multiply 7 by 4. 7 × 4 = 28
Step 4: Add the two answers. 140 + 28 = 168
The answer is 168.
| Step | Calculation | Result |
|---|---|---|
| 1 | 24 = 20 + 4 | |
| 2 | 7 × 20 | 140 |
| 3 | 7 × 4 | 28 |
| 4 | 140 + 28 | 168 |
After seeing this example, your child will spot how to split the two-digit number into tens and ones and work out each part. This method appears in many 11+ questions, so practising similar problems will help them feel ready for the next challenge.
