5.NBT - EOG Review

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What is the total cost of multiple items when given individual prices?

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To find the total cost, add the prices of all items together. For example, if Marcel bought 12 roses for $27.96 and a box of chocolates for $12.98, the total cost is $27.96 + $12.98 = $40.94.

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How do you calculate the remaining amount of money after purchases?

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To calculate the remaining amount, subtract the total cost of purchased items from the initial amount of money. For example, if MaKayla had $3.00 and spent $2.85 on 2 notebooks, 3 pens, and an eraser, she would have $3.00 - $2.85 = $0.15 left.

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What is the significance of decimal numbers in calculations?

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Decimal numbers represent values that are not whole numbers. They are important in calculations involving money, measurements, and precise quantities. For example, 990.037 is a decimal number that can represent a measurement or a monetary value.

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How do you determine the number of containers needed for a specific quantity?

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To determine the number of containers needed, divide the total quantity by the capacity of each container and round up if necessary. For example, if a carpenter has 6,982 nails and each container holds 34 nails, the number of containers needed is 6,982 ÷ 34 = 205.94, rounded up to 206.

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What is the formula for calculating miles per gallon (MPG)?

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The formula for calculating miles per gallon is: MPG = Total miles driven ÷ Total gallons of gasoline used. For example, if Mr. Hall drove 33.44 miles using 2.2 gallons of gasoline, the MPG is 33.44 ÷ 2.2 = 15.2.

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What is the importance of unit conversion in problem-solving?

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Unit conversion is important in problem-solving to ensure that all measurements are in the same unit before performing calculations. This helps avoid errors and ensures accurate results.

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How do you add decimal numbers?

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To add decimal numbers, align the decimal points and add as you would with whole numbers, carrying over as necessary. For example, to add 2.5 and 3.75, align the decimals: 2.50 + 3.75 = 6.25.

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What is the process for solving a word problem?

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The process for solving a word problem includes: 1) Read the problem carefully, 2) Identify the question being asked, 3) Determine the relevant information, 4) Set up an equation or calculation, and 5) Solve and check your answer.

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How do you calculate the total cost of multiple items with different prices?

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To calculate the total cost, list the prices of each item, then add them together. For example, if you buy items costing $5.00, $3.50, and $2.00, the total cost is $5.00 + $3.50 + $2.00 = $10.50.

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What is the relationship between division and multiplication in problem-solving?

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Division and multiplication are inverse operations. If you know the product of two numbers, you can find one of the numbers by dividing the product by the other number. For example, if 6 containers hold 34 nails each, to find the total number of nails, multiply: 6 × 34 = 204.