1. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
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Problem Set Lesson 14 Answers

2. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
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MODULE 4 Expressions and Equaons
Topic E: Expressing Operaons in Algebraic Form
Lesson 15: Read Expressions in Which Leers
Stand for Numbers
Student Outcomes
§ Students read expressions in which leers stand for numbers. They assign operaon terms to operaons when reading.
§ Students idenfy parts of an algebraic expression using mathemacal terms for all operaons.

3. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
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Classwork
Opening Exercise
Complete the graphic organizer with mathemacal words that indicate each
operaon. Some words may not indicate only one operaon.

4. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
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Example 1
Write an expression using words.
a. a‐b
b. xy
c. 4f + u
a minus b the difference of a and b
a decreased by b b subtracted from a
u added to the product of 4 and f
4 mes f plus u
the sum of 4 mulplied by f and u
the product of x and y
x mulplied by y
x mes y

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d. d – b3
e. 5(u‐10) + h
d minus b cubed
the difference of d and the quanty b to the third power .
add h to the product of 5 and the difference of u and 10
5 mes the quanty of u minus 10 added to h

6. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
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f.
Why is 3 divided by d plus f not a correct answer?
find the quoent of 3 and the sum of d and f
3 divided by the quanty d plus f

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Exercises
Circle all the vocabulary words that could be used to describe the given expression.

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Write an expression using vocabulary to represent each given expression.
5. 8 – 2g
6. 15 (a + c)
7.
8 minus the product of 2 and g
2 mes g subtracted from 8
8 decreased by g doubled.
15 mes the quanty of a increased by c
the product of 15 and the sum of a and c
15 mulplied by the total of a and c.
the sum of m and n divided by 5
the quoent of the total of m and n
m plus n split into 5 equal groups.

9. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
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8. b3 – 18
9.
10.
b cubed minus 18
b to the third power decreased by 18.
f minus the quoent of d and 2
d split into 2 groups then subtracted from f
d divided by 2 less than f
u divided by x
the quoent of u and x
u divided into x parts

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Closing
Please take out your exit ticket for Lesson 15, close your
binder, and complete the exit ticket. This will be collected.
Peter says the expression 11 – 3c is three times c
decreased by 11. Is he correct? Why or why not?

11. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
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