| 214·81 | |
| 4·90142 | |
| Answer | 209·90858 |
MULTIPLICATION OF DECIMALS.
Rule.—Place the factors, and multiply them together, the same as if they were whole numbers. Then point off in the product just as many places of decimals as there are decimals in both the factors. But, if there be not so many figures in the product, prefix ciphers to supply the deficiency.[44]
Example.—Multiply 32·108 by 2·5.
| 32·108 | |
| 2·5 | |
| 160540 | |
| 64216 | |
| 80·2700 | Answer. |
DIVISION OF DECIMALS.
Rule.—Divide as in whole numbers, and point off in the quotient as many places for decimals as the decimal places in the dividend exceed those in the divisor. When the decimal places of the quotient are not so many as the above rule requires, the deficiency is to be supplied by prefixing ciphers. When there is a remainder after the division, or when the decimal places in the divisor are more than those in the dividend, then ciphers may be annexed to the dividend, and the quotient carried on as far as required.
Example.—Divide 234·7052 by 64·25.
| 64·25 ) | 234·7052 | ( 3·65 Answer. | |
| 19275 | |||
| 41955 | |||
| 38550 | |||
| 34052 | |||
| 32125 | |||
| 1927 | Remainder. | ||