6•4
Lesson 15
Lesson 15: Read Expressions in Which Letters Stand for Numbers
Lesson 15: Read Expressions in Which Letters Stand for Numbers
Classwork Opening Exercise
Complete the graphic organizer with mathematical words that indicate each operation. Some words may indicate more than one operation.
Example 1
Write an expression using words.
a. 𝑎𝑎 − 𝑏𝑏
b. 𝑥𝑥𝑥𝑥
ADDITION SUBTRACTION MULTIPLICATION DIVISION EXPONENTS
A STORY OF RATIOS
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka- math.org G6-M4-SE-1.3.0-07.2015
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6•4
Lesson 15
Lesson 15: Read Expressions in Which Letters Stand for Numbers c. 4𝑓𝑓+𝑝𝑝
d. 𝑑𝑑 − 𝑏𝑏3
e. 5(𝑢𝑢 −10) +ℎ
f. 𝑑𝑑+𝑓𝑓3
Exercises
Circle all the vocabulary words that could be used to describe the given expression.
1. 6ℎ −10
2. 5𝑑𝑑 6
3. 5(2 +𝑑𝑑)−8
4. 𝑎𝑎𝑏𝑏𝑎𝑎
ADDITION SUBTRACTION MULTIPLICATION DIVISION
SUM DIFFERENCE PRODUCT QUOTIENT
ADD SUBTRACT MULTIPLY DIVIDE
MORE THAN LESS THAN TIMES EACH
A STORY OF RATIOS
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka- math.org G6-M4-SE-1.3.0-07.2015
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6•4
Lesson 15
Lesson 15: Read Expressions in Which Letters Stand for Numbers Write an expression using vocabulary to represent each given expression.
5. 8−2𝑔𝑔
6. 15(𝑎𝑎+𝑎𝑎)
7. 𝑚𝑚+𝑛𝑛 5
8. 𝑏𝑏3−18
9. 𝑓𝑓 −𝑑𝑑2
10. 𝑢𝑢 𝑥𝑥
A STORY OF RATIOS
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka- math.org G6-M4-SE-1.3.0-07.2015
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6•4
Lesson 15
Lesson 15: Read Expressions in Which Letters Stand for Numbers
Problem Set
1. List five different vocabulary words that could be used to describe each given expression.
a. 𝑎𝑎 − 𝑑𝑑+𝑎𝑎 b. 20−3𝑎𝑎 c. 𝑑𝑑+2𝑏𝑏
2. Write an expression using math vocabulary for each expression below.
a. 5𝑏𝑏 −18 b. 𝑛𝑛2
c. 𝑎𝑎+ (𝑑𝑑 −6) d. 10 + 2𝑏𝑏 A STORY OF RATIOS
This work is derived from Eureka Math ™ and licensed by Great Minds. ©2015 Great Minds. eureka- math.org G6-M4-SE-1.3.0-07.2015
S.70
