5th Math Benchmark 1 Review

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What is the order of operations in math?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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What is standard form in mathematics?

Back

Standard form is a way of writing numbers using digits. For example, the number 4,080.012 is in standard form, as opposed to expanded form which would be 4 x 1,000 + 8 x 10 + 1 x 0.01 + 2 x 0.001.

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How do you round a number to the nearest tenth?

Back

To round a number to the nearest tenth, look at the digit in the hundredths place. If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

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What is an estimate in math?

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An estimate is a rough calculation or judgment of a number. It is used to make quick calculations without needing exact numbers.

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What does it mean to balance a budget?

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Balancing a budget means ensuring that your expenses do not exceed your income. This can involve decreasing expenses or increasing income.

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What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3 = 12).

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What is the difference between income and expenses?

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Income is the money received, typically from work or investments, while expenses are the costs incurred for goods and services.

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How do you calculate the total weight of multiple items?

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To calculate the total weight, multiply the weight of one item by the number of items. For example, if one suitcase weighs 47 pounds and there are 98 suitcases, the total weight is 47 x 98.

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What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler but still close to its original value. It often involves increasing or decreasing the number to the nearest specified place value.

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What is a reasonable estimate?

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A reasonable estimate is a close approximation of a number that is easy to calculate and understand, often used for quick mental math.