Solution - Long multiplication
Step-by-step explanation
1. Rewrite the numbers from top to bottom aligned to the right
| Place value | ones | . | tenths | hundredths | thousandths |
| 0 | . | 0 | 5 | ||
| × | 0 | . | 0 | 0 | 5 |
| . |
Ignore the decimal points and multiply as if these are whole numbers (as if each most right digit is the ones digit):
In this case we removed 5 decimal place(s). So once calculated, the result will be reduced by the factor of 100,000.
| Place value | tens | ones |
| 5 | ||
| × | 5 | |
2. Add the partial products
Start by multiplying the ones digit (5) of the multiplier 5 by each digit of the multiplicand 5, from right to left.
Multiply the ones digit (5) of the multiplicator by the number in the ones place value:
5×5=25
Write 5 in the ones place.
Because the result is greater than 9, carry the 2 to the tens place.
| Place value | tens | ones |
| 2 | ||
| 5 | ||
| × | 5 | |
| 2 | 5 |
Because we have 5 digit(s) to the right of the decimal point in the numbers that are being multiplied, we move the decimal point 5 time(s) to the left (reducing the result by the factor of 100,000) to get the final result:
The solution is: 0.00025
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