Estimate Quantities with Single Digits and Powers of Ten

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What is scientific notation?

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A way of expressing numbers as a product of a single digit (1-9) and a power of ten.

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How do you estimate a small decimal using powers of ten?

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Identify the first non-zero digit and express the number as that digit times a power of ten.

Front

Estimate the quantity 0.000233 using a single digit times a power of ten.

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Estimate the quantity 721,536 using a single digit raised to a power of ten.

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Estimate the quantity 0.0000578 using a single digit times a power of ten.

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Estimate the quantity 1,894,456 using a single digit times a power of ten.

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Estimate the quantity 0.0089 using a single digit times a power of ten.

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Front

What is the purpose of estimating quantities in scientific notation?

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To simplify calculations and make it easier to understand the scale of numbers.

Front

How do you convert a number like 0.0023 into scientific notation?

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What is the significance of the exponent in scientific notation?

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It indicates the number of places the decimal point has been moved.