Unit 7, Lesson 4
Ordering Rational Numbers
Grade 6
Practice
Problem 1
Select all of the numbers that are greater than \(\text-5\).
1.3
\(\text-6\)
\(\text-12\)
\(\frac{1}{7}\)
\(\text-1\)
\(\text-4\)
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Problem 2
Order these numbers from least to greatest: \(\frac12\), 0, 1, \(\text{-}1\frac{1}{2}\), \(\text{-}\frac{1}{2}\), -1
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Problem 3
Here are the boiling points of certain elements in degrees Celsius:
- Argon: -185.8
- Chlorine: -34
- Fluorine: -188.1
- Hydrogen: -252.87
- Krypton: -153.2
List the elements from least to greatest according to their boiling points.
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Problem 4
Explain why zero is considered its own opposite.
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Problem 5
Explain how to make these calculations mentally.
- \(99 + 54\)
- \(244 - 99\)
- \(99 \boldcdot 6\)
- \(99 \boldcdot 15\)
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Find the quotients.
- \(\frac{1}{2} \div 2\)
- \(2 \div 2\)
- \(\frac{1}{2} \div \frac{1}{2}\)
- \(\frac{38}{79} \div\frac{38}{79}\)
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Problem 7
Over several months, the weight of a baby measured in pounds doubles. Does its weight measured in kilograms also double? Explain or show your reasoning.
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