Lesson 9: Applying the Properties of Operations to Add and Subtract Rational Numbers Classwork Exercise 1 Unscramble the cards, and show the steps in the correct order to arrive at the solution to
Applying the Properties of Operations to Add and Subtract Rational Numbers 3/18/14
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Lesson 9
NYS COMMON CORE MATHEMATICS CURRICULUM
7•2
Exercise 2: Team Work! a.
b.
(
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(
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c.
(
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d.
(
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Exercise 3 Explain step by step, how to arrive at a single rational number to represent the following expression. Show both a written explanation and the related math work for each step. (
Applying the Properties of Operations to Add and Subtract Rational Numbers 3/18/14
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Lesson 9
NYS COMMON CORE MATHEMATICS CURRICULUM
7•2
Lesson Summary
Use the properties of operations to add and subtract rational numbers more efficiently. For instance: (
)
.
The opposite of a sum is the sum of its opposites as shown in the examples that follow: ( (
). (
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).
Problem Set Show all steps taken to rewrite each of the following as a single rational number. 1.
(
2.
(
5.
)
(
3.
4.
)
(
)
)
Explain step by step, how to arrive at a single rational number to represent the following expression. Show both a written explanation and the related math work for each step. (
Applying the Properties of Operations to Add and Subtract Rational Numbers 3/18/14
S.52
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G7-M2-A-Lesson 9-S.pdf
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