Megoldás - Long multiplication
Lépésről lépésre magyarázat
1. Rewrite the numbers from top to bottom aligned to the right
| Helyiérték | egyesek | . | tizedek | századok | ezredek | tízezredek | százezredek |
| 0 | , | 0 | 0 | 0 | 0 | 7 | |
| × | 0 | , | 0 | 0 | 3 | ||
| , |
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 8 decimal place(s). So once calculated, the result will be reduced by the factor of 100 000 000.
| Helyiérték | tízesek | egyesek |
| 7 | ||
| × | 3 | |
2. Add the partial products
Start by multiplying the egyesek digit (3) of the multiplier 3 by each digit of the multiplicand 7, from right to left.
Multiply the egyesek digit (3) of the multiplicator by the number in the egyesek place value:
3×7=21
Write 1 in the egyesek place.
Because the result is greater than 9, carry the 2 to the tízesek place.
| Helyiérték | tízesek | egyesek |
| 2 | ||
| 7 | ||
| × | 3 | |
| 2 | 1 |
Because we have 8 digit(s) to the right of the decimal point in the numbers that are being multiplied, we move the decimal point 8 time(s) to the left (reducing the result by the factor of 100 000 000) to get the final result:
The solution is: 0,00000021