Solution - Long multiplication
45
Step-by-step explanation
1. Rewrite the numbers from top to bottom aligned to the right
| Place value | tens | ones |
| 5 | ||
| × | 9 | |
2. Multiply the numbers using long multiplication method
Start by multiplying the ones digit (9) of the multiplier 9 by each digit of the multiplicand 5, from right to left.
Multiply the ones digit (9) of the multiplicator by the number in the ones place value:
9×5=45
Write 5 in the ones place.
Because the result is greater than 9, carry the 4 to the tens place.
| Place value | tens | ones |
| 4 | ||
| 5 | ||
| × | 9 | |
| 4 | 5 |
The solution is: 45
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