Japanese Multiplication Big Numbers

Here s how the trick works.

Japanese multiplication big numbers. As you can see the rule we learned for the first 100 japanese numbers is still valid. Visual multiplication curriculum expectations materials have students learn about a way of visually representing the multiplication of multi digit whole numbers in elementary school mathematics students represent mathematical ideas and relationships and model situations using concrete materials pictures diagrams. Youtuber mindyourdecisions has an excellent explanatory video so to follow along with their example we ll go with 12 x 13. The japanese way to multiply is so much cooler than ours.

Quickly multiply big numbers the japanese way. To count further than 100 in japanese you just continue to stack numbers. Here is an interesting method to visualize multiplication that reduces it to simple counting. You have to try it.

Then when you get to 1 000 hyaku becomes sen and so on. First pick a multiplication problem. Let s look at a more complex example and make sure you understood the rule. Let s take the number 1289.

Draw sets of parallel lines representing each digit of the firs.