Multiply and Divide Decimals

Front

What is the process of dividing decimals?

Back

To divide decimals, align the decimal points and divide as if they were whole numbers. Adjust the decimal point in the quotient based on the number of decimal places in the divisor.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.

Front

What is the cost per item when given a total cost and quantity?

Back

To find the cost per item, divide the total cost by the quantity of items.

Front

How do you determine if you should multiply or divide in a word problem?

Back

Identify keywords: if the problem involves 'each', 'per', or 'out of', it usually indicates division. If it involves 'total', 'combined', or 'in all', it usually indicates multiplication.

Front

What is the formula for finding the total cost when buying multiple items?

Back

Total Cost = Price per Item × Number of Items.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the significance of decimal places in multiplication and division?

Back

Decimal places determine the precision of the result. In multiplication, the total number of decimal places in the factors equals the number of decimal places in the product. In division, the position of the decimal in the quotient is determined by the decimal places in the dividend and divisor.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If a × b = c, then c ÷ b = a and c ÷ a = b.

Front

How do you find the average amount saved per day?

Back

To find the average amount saved per day, divide the total amount saved by the number of days.

Front

What is a practical example of dividing a total amount into equal parts?

Back

If you have a total length of rope and you want to cut it into equal pieces, you divide the total length by the number of pieces.