Multiplying and Dividing Decimals in Word Problems 2024 (Mod)

Front

What is the process to find the cost of one item when given the total cost and the number of items?

Back

To find the cost of one item, divide the total cost by the number of items. For example, if the total cost is $67.50 for 27 books, the cost per book is $67.50 ÷ 27 = $2.50.

Front

How do you calculate the cost each person pays when a total amount is shared equally among friends?

Back

To find the cost per person, divide the total amount by the number of people sharing the cost. For example, if 12 friends pay $83.40, each person pays $83.40 ÷ 12 = $6.95.

Front

What is the formula to find the price of each packet when given the total cost and the number of packets?

Back

To find the price per packet, divide the total cost by the number of packets. For example, if the total cost is $37.95 for 23 packets, the price per packet is $37.95 ÷ 23 = $1.65.

Front

How do you calculate total earnings based on hourly wage and hours worked?

Back

To find total earnings, multiply the hourly wage by the number of hours worked. For example, if the hourly wage is $3.85 and the person works 18 hours, total earnings are $3.85 × 18 = $69.30.

Front

What is the method to find the total cost after applying a discount?

Back

To find the total cost after a discount, subtract the discount from the original total cost. For example, if peaches cost $2.50 per pound for 3.25 pounds and there is a $1.50 coupon, the total cost is ($2.50 × 3.25) - $1.50 = $6.63.

Front

Define 'decimal multiplication'.

Back

Decimal multiplication is the process of multiplying two decimal numbers, which involves aligning the numbers and multiplying as if they were whole numbers, then placing the decimal point in the result.

Front

What is 'decimal division'?

Back

Decimal division is the process of dividing one decimal number by another, which may involve moving the decimal point to simplify the division.

Front

Explain the importance of estimating before solving a decimal word problem.

Back

Estimating helps to check if the final answer is reasonable and can guide the calculation process, making it easier to identify errors.

Front

What is the significance of understanding place value in decimal operations?

Back

Understanding place value is crucial in decimal operations as it helps in accurately positioning the decimal point in the result of multiplication or division.

Front

How can you check your answer after solving a decimal word problem?

Back

You can check your answer by reversing the operation (e.g., if you multiplied, try dividing) or by estimating to see if the answer is reasonable.