News
While the box method is essentially the same as the standard algorithm, it does a much nicer job of illustrating what's going on in a multiple-digit multiplication problem. 23 times 7 really just ...
Learn how to multiply 2-digit numbers mentally with this step-by-step guide for kids. Discover simple techniques to boost calculation speed, improve mental math skills, and build confidence for ...
Watch Savanna Burris of Meadow Homes Elementary in Concord, California breaks down the "box method" of multiplication — in less than two minutes.
The standard method for two and three digit multiplication is delayed until fifth grade; the standard method for long division until sixth.
You will need to calculate using a column method, which is another name for long multiplication. This will allow you to multiply up to 4-digit numbers by 2-digit numbers.
This Maths article explains both the mental method and written method for multiplying a 2-digit number by a 1-digit number.
To help you understand the algorithm, the video shows a simple two-digit by two-digit multiplication. You can see that the first and last digits are essentially the result of one multiplication.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results