Topic 5 Grade 5

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How do you calculate earnings per hour?

Back

To calculate earnings per hour, divide the total earnings by the total hours worked. For example, if Carlos earns $20.16 for 3 hours, the calculation is $20.16 ÷ 3 = $6.72 per hour.

Front

What is the formula to find the cost of one item?

Back

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

Front

How do you calculate the total cost of multiple items?

Back

To calculate the total cost of multiple items, multiply the cost of one item by the number of items. For example, if one pound of strawberries costs $4.26 and Sophia buys 5 pounds, the calculation is $4.26 × 5 = $21.30.

Front

What is the method to find the cost of one box from a total sale?

Back

To find the cost of one box from a total sale, divide the total sale price by the number of boxes sold. For example, if 14 boxes of candles were sold for $91.00, the calculation is $91.00 ÷ 14 = $6.50 per box.

Front

What is the result of dividing a decimal by a whole number?

Back

When dividing a decimal by a whole number, move the decimal point in the dividend (the number being divided) to the left as needed. For example, 8.96 ÷ 2 = 4.48.

Front

What is the definition of division in mathematics?

Back

Division is the process of determining how many times one number is contained within another. It is one of the four basic operations in arithmetic.

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What does it mean to find the average cost per item?

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Finding the average cost per item means calculating the total cost and dividing it by the number of items to determine how much each item costs on average.

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How do you convert a total cost into a unit price?

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To convert a total cost into a unit price, divide the total cost by the quantity of items. This gives you the price for one unit.

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What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is often expressed as a quantity per one unit of another quantity.

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What is the importance of understanding ratios in problem-solving?

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Understanding ratios helps in comparing quantities and making sense of relationships between different values, which is essential in solving real-world problems.