To multiply two numbers by hand take a few steps but it’s something we’re taught in school. When dealing with big numbers, really big numbers, we need to a quicker way to do things.

Most everyone learns to multiply the same way. We stack two numbers, multiply every digit in the bottom number by every digit in the top number, and do addition at the end. If you’re multiplying two ...

Multiply by 5 using the grouping of objects, counting by fives, and arrays.

Under the Common Core Standards, students will not learn traditional methods of adding and subtracting double and triple digit numbers until fourth grade.

In the second experiment a color mediation procedure was employed to effectively teach two children a series of single digit multiplication problems that they had great difficulty learning. Both ...