Five-Minute Check
Then/Now
New Vocabulary
Example 1: Write a Verbal Expression
Key Concept: Translating Verbal to Algebraic Expressions
Example 2: Write Algebraic Expressions
Example 3: Real-World Example: Write an Expression
Find the sum of 2.19 + 18.35.
A. 19.44
B. 20.44
D
C
0%
A
D. 21.54
B
C. 20.54
A. A
B. B
C. C
0%
D. 0%D 0%
A.
B.
A
B
C
0%
D
D
0%
B
0%
A
D.
C
C.
A.
B.
C.
0%
D.
Find the quotient of 84 ÷ 6.
A. 16
B. 15.3
A
B
C
0%
D
D
0%
B
0%
A
D. 14
C
C. 15
A.
B.
C.
0%
D.
A.
B.
A
B
C
0%
D
D
0%
B
0%
A
D.
C
C.
A.
B.
C.
0%
D.
Find the perimeter of
the figure.
A. 2.9 m
0%
B
A
D. 1.45 m
0%
A
B
C
0%
D
D
C. 1.8 m
A.
B.
C.
0%
D.
C
B. 2.5 m
Find the mean of the following set of data.
15, 23, 18, 17, 8, 20, 16, 23, 17, 18, 25, 15, 13, 19, 17
A. 17
0%
B
D. 20
A
0%
A
B
C
0%
D
D
C. 18
C
B. 17.6
A.
B.
C.
0%
D.
You performed operations on integers.
(Lesson 0–3)
• Write verbal expressions for algebraic
expressions.
• Write algebraic expressions for verbal
expressions.
• algebraic expression
• product
• variable
• power
• term
• exponent
• factor
• base
Write Verbal Expressions
A. Write a verbal expression for 8x2.
Answer: eight times x squared
Write Verbal Expressions
B. Write a verbal expression for y5 – 16y.
Answer: the difference of y to the fifth power and 16
times y
A. Write a verbal expression for 7a4.
A. 7 times a
B. 7 times the product of 4 and a
A
B
C
0%
D
D
0%
B
0%
A
D. 4 times a to the seventh power
C
C. 7 times a to the fourth power
A.
B.
C.
0%
D.
B. Write a verbal expression for x2 + 3.
A. the sum of 3 and x
B. the product of x squared and 3
A
B
C
0%
D
D
0%
B
0%
A
D. the sum of x squared and 3
C
C. the sum of x and 3 squared
A.
B.
C.
0%
D.
Write Algebraic Expressions
A. Write an algebraic expression for 5 less than a
number c.
The words less than suggest subtraction.
a number c
less
c
–
five
5
Answer: Thus, the algebraic expression is c – 5.
Write Algebraic Expressions
B. Write an algebraic expression for 9 plus the
product of 2 and d.
Plus implies add, and product implies multiply.
Answer: The expression can be written as 9 + 2d.
Write Algebraic Expressions
C. Write an algebraic expression for two fifths of
the area a.
The word of implies multiply.
A. Write an algebraic expression for nine more than
a number h.
A. 9 – h
B. 9h
0%
B
A
0%
A
B
C
0%
D
D
D. h – 9
C
C. 9 + h
A.
B.
C.
0%
D.
B. Write an algebraic expression for the difference of
6 and 4 times a number x.
A. 6 – 4x
0%
B
0%
A
D. 6x – 4
A
B
C
0%
D
D
C. 6 + 4x
A.
B.
C.
0%
D.
C
B. (6 – 4)x
C. Write an algebraic expression for one half the size
of the original perimeter p.
A. 2p
0%
0%
B
D. p
A
B
C
0%
D
D
p2
A
C.
A.
B.
C.
0%
D.
C
B.
Write an Expression
ENTERTAINMENT Mr. Nehru bought two adult
tickets and three student tickets for the planetarium
show. Write an algebraic expression that
represents the cost of the tickets.
Let a be the cost of each adult ticket and c be the cost
of each student ticket. The cost of the adult tickets is
represented by 2a and the cost of the student tickets is
represented by 3c.
Answer: The cost of the tickets is represented by
2a + 3c.
MONEY Lorenzo bought a bag of peanuts that
cost p dollars and he gave the cashier a $20 bill.
Write an expression for the amount of change that
he will receive.
A. 20 – p
0%
B
0%
A
D. 20  p
A
B
C
0%
D
D
C. 20 + p
A.
B.
C.
0%
D.
C
B. p – 20