Question

How to multiply decimals

Answer 1

Just follow these steps:

• Multiply normally, ignoring the decimal points.
• Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.

In other words, just count up how many numbers are after the decimal point in both numbers you are multiplying, then the answer should have that many numbers after its decimal point.

Example: Multiply 0.03 by 1.1

start with:		0.03 × 1.1
multiply without decimal points:		3 × 11 = 33
0.03 has 2 decimal places, and 1.1 has 1 decimal place, so the answer has 3 decimal places:		0.033