However, you never know when you’ll need to do quick math, and the Japanese multiplication ... Credit: Emily Long In the right corner of your box for 12 x 13, you have six dots (the ...

Here's how the "box method" works: First you divide the larger number into its separate parts. Here, 23 becomes 20 and 3. Next, you multiply each separate part — 20 x 7 and 3 x 7. Finally ...

The Common Core's approach to math ... grey box]. Equations like this really are read out as sentences relating two quantities to each other, leading to the term number sentence. The box method ...