Decimals Problem Solving

Decimals Problem Solving-34
For instance, 4.12 Multiplication and division are inverse operations, so you can expect that if you divide a decimal by a power of ten, the decimal point in the quotient will also correspond to the number of zeros in the power of ten.The difference is that the decimal point moves to the right when you multiply; it moves to the left when you divide.

For instance, 4.12 Multiplication and division are inverse operations, so you can expect that if you divide a decimal by a power of ten, the decimal point in the quotient will also correspond to the number of zeros in the power of ten.

Then move the decimal point in the dividend that number of decimal places to the left; this will be your quotient.

Andy just sold his van that averaged 20 miles per gallon of gasoline.

In the examples above, notice that each quotient still contains the digits 4469—but as another 0 is added to the end of each power of ten in the divisor, the decimal point moves an additional place to the left in the quotient.

To divide a decimal by a power of ten (10, 100, 1,000, etc.), count the number of zeros in the divisor.

He bought a new pickup truck and took it on a trip of 614.25 miles. Did Andy get better gas mileage with the new truck?

Sample Argumentative Essay On Abortion - Decimals Problem Solving

Multiplying decimals is the same as multiplying whole numbers except for the placement of the decimal point in the answer.In this case, you can multiply the The number that is being divided into the dividend in a division problem. divisor, 0.3, by 10 to move the decimal point 1 place to the right.If you multiply the divisor by 10, then you also have to multiply the The number to be divided up in a division problem. To divide by a decimal, multiply the divisor by a power of ten to make the divisor a whole number.In fact, the decimal point moves to the right by the same number of zeros in the power of ten multiplier.In cases like this, you can use powers of 10 to help create an easier problem to solve.If the number of decimal places is greater than the number of digits in the product, you can insert zeros in front of the product.Notice that the products keep getting greater by one place value as the multiplier (10, 100, and 1,000) increases.When multiplying decimals, the number of decimal places in the product is the sum of the decimal places in the factors.As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more.Then multiply the dividend by the same power of ten.You can think of this as moving the decimal point in the dividend the same number of places to the right as you move the decimal point in the divisor. Remember that when you divide, you do not count the total number of decimal places in the divisor and dividend.

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