Multiplying Decimals | MathHelp.com - By MathHelp.com
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| 00:0-1 | To multiply two decimals such as 16.1 times 2.4 . | |
| 00:05 | 1st line up the numbers and begin multiplying as if | |
| 00:08 | we're multiplying two whole numbers . So we have 16.1 | |
| 00:14 | times 2.4 , four times 1 is four , Four | |
| 00:22 | times six is 24 . So we bring down the | |
| 00:24 | four and carry the two . Four times one is | |
| 00:28 | four plus two is six , Moving to a new | |
| 00:31 | row and starting in the 10s column two times 1 | |
| 00:35 | is two , Two times six is 12 . So | |
| 00:38 | we bring down the two and carry the one . | |
| 00:41 | Two times one is two plus one is three . | |
| 00:46 | Now we add the two rows together . Four plus | |
| 00:49 | zero is four , four plus 2 is six , | |
| 00:53 | six plus 2 is eight and zero plus three is | |
| 00:58 | three . Finally , we determine where the decimal point | |
| 01:02 | goes in our answer Since 16.1 has one digit to | |
| 01:06 | the right of the decimal point and 2.4 has one | |
| 01:10 | digit to the right of the decimal point . We | |
| 01:12 | have a total of two digits to the right of | |
| 01:14 | the decimal point in our original numbers , this means | |
| 01:18 | that our answer will have two digits to the right | |
| 01:20 | of the decimal point . So our answer is 38.64 | |
| 01:26 | , So 16.1 times 2.4 is 38.64 . |
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