12/5 Decimal Division and Spiral Review

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What is decimal division?

Back

Decimal division is the process of dividing numbers that include decimal points. It involves determining how many times one number can fit into another, considering the decimal places.

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How do you estimate the product of two decimal numbers?

Back

To estimate the product, round each decimal number to the nearest whole number and then multiply the rounded numbers.

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Back

0.9

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How do you round a decimal to the nearest whole number?

Back

Look at the digit to the right of the decimal point. If it is 5 or greater, round up. If it is less than 5, round down.

Front

What is the estimated height of a King Palm after 15 years if it grows 2.1 feet a year?

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30 feet (2.1 feet/year * 15 years = 31.5 feet, rounded to 30 feet).

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Back

75 (rounded from 66.5).

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Back

90 (rounded from 100.32).

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What is the definition of a whole number?

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A whole number is a non-negative integer, which includes 0 and all positive integers (1, 2, 3, ...).

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What does it mean to estimate in mathematics?

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Estimating means finding a value that is close enough to the right answer, usually for the purpose of making calculations easier.

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What is the process of division?

Back

Division is the process of determining how many times one number is contained within another.