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# How to multiplicate quickly

Try to solve the following task by mental calculation:
319 x 546 = ?

Multiplication with one-digit numbers is relatively easy. We have learned the multiplication table in school. We can do this in our head without any problems. Multiplication with small two-digit numbers is also possible. This is the multiplication tables from 1x1 to 20x20. It is difficult to do more calculations in our head. In this case, we do the multiplication on paper.

### In school we learned written multiplication in the following way:

We start from the right and multiply the numbers 6x9 = 54. 4 can be written in the first line below 6 and we remember 5. Then we multiply 6 by 1 = 6. 6 plus 5 makes 11. Write 1 below 4 in the line to the left of the number 4. Then 6x3 = 18 + 1 = 19. We repeat the procedure with 4 of 546. 4x9 = 36. 6 has to be written below 4 in the second line. Then we transfer the number 3. And so on. Given that many steps are involved here, it is "impossible" to do a multiplication in the head .