practice

1. Verify the rule of thumb that one cubic meter of helium can lift about one kilogram of load.
2. What fraction of an iceberg is above water?
3. Write something different.
4. Write something completely different.

conceptual

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numerical

1. [an error occurred while processing this directive]
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3. [an error occurred while processing this directive]
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algebraic

1. [an error occurred while processing this directive]
2. [an error occurred while processing this directive]
3. [an error occurred while processing this directive]
4. [an error occurred while processing this directive]

calculus

1. [an error occurred while processing this directive]
2. [an error occurred while processing this directive]
3. [an error occurred while processing this directive]
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statistical

1. [an error occurred while processing this directive]
2. [an error occurred while processing this directive]
3. [an error occurred while processing this directive]
4. [an error occurred while processing this directive]

investigative

1. [an error occurred while processing this directive]
2. [an error occurred while processing this directive]
3. [an error occurred while processing this directive]
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worksheets

1. [an error occurred while processing this directive]