To multiply a whole number by a number between 0 and 1: Multiply the decimal by a power of 10 to get a whole number. This makes the calculation simpler. Multiply the whole numbers.

Grid method for multiplying numbers The grid method is a visual way of multiplying two numbers. Each digit in the number is divided into its place value column. For example, calculate 46 × 35: ...

But multiplying two numbers with more than a billion digits each — that takes some serious computation. The multiplication technique taught in grade school may be simple, but for really big ...

Mathematicians have reportedly discovered a new way of multiplying two numbers together. The new technique is for really large numbers, and if it passes a peer-review, could be the fastest ...

In long multiplication, we have to multiply every digit of the first number by every digit of the second number. If the two numbers each have N digits, that’s N2 (or N x N) multiplications altogether.

Then take the two numbers you want to multiply—in the case of the above image, 7 and 8—and put together the corresponding fingers (as shown in the picture to the right).

Multiplying numbers in Excel isn't always the easiest thing to do, but it can be done. Here's how to do it in four ways, depending on what you need to multiply.

You wouldn’t use this algorithm when calculating a tip, but when it comes to multiplying large numbers, Karatsuba’s method was a big advance. And once Karatsuba opened the door to faster ...

You draw lines on the diagonal to represent the numbers of the first number to multiply, then cross those lines with the other number's lines. Add up the intersections for each area, and you have ...