Without the help of a calculator, it is tough to multiply decimal numbers. Most of the time we perform calculation through scientific calculator. However, it is essential to know how do you multiply decimals by hand. However, there are chances of more accuracy in case calculation by hand. Because it is easy to press wrong button on a calculator and can get a wrong, answer which we may assume right. Therefore, it is necessary to follow the rules that how do you multiply decimals. Some rules are given to multiply decimal numbers.
The simple rules to multiply decimals are- Multiply numbers assuming them whole numbers. On right side line up the numbers –no need to align decimal numbers. Start from right each digit in the top number is multiplied by each digit in the bottom number. Products are added. Start at the right by placing decimal point in answer and move point of number of places that is equal to decimal in both numbers multiplied.
If you want to multiply decimal with the whole number place numbers one after another. Then simply multiply it. If decimal number contain decimal after one digit then put decimal after one digit in result. Moreover, decimal is after two digits then put decimal after two digits in the result. We can apply a decimal point to separate units from parts of a whole like thousands, hundreds and tenths. Whenever you are trying to order numbers, first compare left digit always. In other way, you can add zero to a decimal number and then multiply it with whole number.
If you want to multiply fraction with decimal multiply decimal number with ten, hundreds or thousands according to the places of decimal after digits. Then simply multiply it with fraction number. Another way to multiply fraction with decimal number simply solve the problem by dividing numerator by denominator and multiplying it with decimal number. At last, put decimal point according to place in decimal number in answer.
The another method how do you multiply decimals forget decimal points while multiplying decimals then multiply whole numbers. Make calculation that how many decimal places are occurred in whole problem. In addition, put decimal point to left to find your result. If in a problem, there are three decimal places you have to put decimal point at the third place to the left in result. Therefore, it is easy and appropriate way to multiply decimals by hand. You can take the help of reference websites to kinow about the arithmetic formulas.
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