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Published byHannah Dennis Modified over 9 years ago
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5 Minute Check
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Fluency
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Tuesday, Dec 1 Lesson 5.5.b Compare and Order Rational Numbers
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Objective: To understand how to compare and order all rational numbers.
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Compare and Order Rational Numbers Fill in with or = to make a true statement. -1.5 0.8
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Compare and Order Rational Numbers Fill in with or = to make a true statement. -1.5 < 0.8 Remember – On a number line the number to the left is always less than the number to the right.
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Compare and Order Rational Numbers Fill in with or = to make a true statement. -1 -1.2
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Compare and Order Rational Numbers Fill in with or = to make a true statement. -1 > -1.2 If both numbers have a negative sign, remove the negative sign and determine the answer. Then replace the negative signs and reverse the answer.
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Compare and Order Rational Numbers The number line can be used to compare and order all rational numbers.
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Compare and Order Rational Numbers Rule #1- A negative number is always less than any positive number.
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Compare and Order Rational Numbers Rule #1- A negative number is always less than a positive number. Rule #2 – When comparing fractions, the denominators must be the same. Then just compare the numerators.
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Compare and Order Rational Numbers Rule #2 – When comparing fractions, the denominators must be the same. Then just compare the numerators. Rule #3 – When comparing a decimal and a fraction, one form must be converted to the other. Either convert the fraction to a decimal or vice versa.
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Compare and Order Rational Numbers
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Write an inequality with -1.2 and 0.8 Do this on your own.
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Compare and Order Rational Numbers Write an inequality with -1.2 and 0.8 -1.2 < 0.8 -1.2 0.8 Since -1.2 is negative and 0.8 is positive, 0.8 must be greater.
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Compare and Order Rational Numbers Write an inequality with -1.40 and -1.25 Do this on your own.
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Compare and Order Rational Numbers Write an inequality with -1.40 and -1.25 -1.40 < -1.25 -1.40 -1.25 Since -1.25 is to the right of -1.40 it is greater.
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Compare and Order Rational Numbers
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Identify the ratio that does not have the same value as the other three. Explain your reasoning.
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Compare and Order Rational Numbers
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Agenda Notes Homework – Skills Practice 5.5.b Due Wednesday, Dec 2 Show all work. Chapter 5 Test -Friday, Dec 4 Accum Rev 5 due on Dec 4
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