Table of Contents
How many decimals are in the product?
When multiplying decimals, placement of the decimal point is very important. Since there is one decimal digit in each factor, there must be two decimal digits in the product.
Where do you put the decimal point in the product of two decimals?
Treat the decimal numbers as whole numbers by removing the decimal point and multiply. Place the decimal point after leaving digits equal to the total number of decimal places in both numbers. Remember to place the decimal point starting from the right-hand side of the product.
What are the decimal rules?
Line up your numbers with the last digits under each other. Multiply as you would with whole numbers. Add the decimal places in each of the numbers being multiplied. Move the decimal point to the left the TOTAL number of places in the numbers being multiplied.
How do you find a decimal number?
If a number has a decimal point , then the first digit to the right of the decimal point indicates the number of tenths.
- For example, the decimal 0.3 is the same as the fraction 310 .
- For example, the decimal 3.26 is the same as the mixed number 326100 .
How to calculate the number of decimal places in a product?
Place the decimal point. The number of decimal places in the product is the sum of the number of decimal places in the factors. If needed, use zeros as placeholders. Write the product with the appropriate sign. . Determine the sign of the product. The signs are the same. The product will be positive.
How do you multiply two numbers with decimals?
When we multiply two numbers with decimals, we count all the decimal places in the factors—in this case two plus three—to get the number of decimal places in the product—in this case five. Once we know how to determine the number of digits after the decimal point, we can multiply decimal numbers without converting them to fractions first.
Do you have to multiply two numbers to find the product?
If you are asked to work out the product of two or more numbers, then you need to multiply the numbers together. If you are asked to find the sum of two or more numbers, then you need to add the numbers together.
Is the product of decimals positive or negative?
The number of decimal places in the product is the sum of the number of decimal places in the factors. The rules for multiplying positive and negative numbers apply to decimals, too, of course. if their signs are the same, the product is positive. if their signs are different, the product is negative.