Dividing decimals means splitting a decimal number into equal groups. You use division to find how many groups you can make or how much is in each group when decimals are involved.
Decimal division often appears in real-life situations like measuring, shopping, and sharing amounts evenly.
To divide a decimal by a whole number, divide as you normally would and bring the decimal point straight up into the answer.
You never move the decimal in the dividend when dividing by a whole number. It simply goes straight up into the quotient.
When dividing a decimal by another decimal, make the divisor a whole number by moving its decimal point to the right. Then move the decimal point in the dividend the same number of places.
The value of the problem does not change when you move both decimals the same number of places. You are creating an easier division problem.
Decimal division word problems can involve finding the number of equal groups, finding the size of each group, comparing quantities, or calculating unit rates.
Spotting which situation the problem describes helps you choose the correct numbers to divide.
When solving word problems, carefully identify what the numbers represent and determine whether you are finding each group’s size or the number of groups.
Always check that your answer makes sense for the situation. For example, you should not get more groups than the total makes possible.
Be careful with decimal placement and be sure you understand what the question is asking before computing.
Reread the question after solving to be sure your answer matches what the problem asked.