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Summary: When multiplying decimals together, it's important to take the decimal point into account before calculating an answer. Learn how to shift the decimal point when multiplying two decimals together using tips from a math tutor in this free video on math skills.
Alex Martinez grew up in western Massachusetts and is currently a mechanical engineering student at the University of Massachusetts at Amherst. He is set to graduate in 2009 with a...read more
"Okay, now I'm going to show you how to multiply decimals. Let's take the decimal zero point two five. times zero point one six. Multiplying decimals is the same as multiplying any other numbers but you have to take into account the position of the decimal point at the end. So let's multiply, five times six is thirty. Six times two is twelve plus three is fifteen. Now we put a zero here as a placeholder, five times one is five, one times two is two. Now we add and now that we have an answer we need to take into account the position of these decimal places. So we have one, two, three, four digits that are beyond the decimal places. So we need to move this decimal four places, one, two, three, four, so one, two, three, four; the answer is zero point four O, O."
Comments
kaanin said
on 4/21/2009 Wouldn't the answer be 0.04 not 0.4?