Copyright © Swun Math Grade 6 Unit 4 Lesson 15 P HW
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Date: ______________________________
Homework
Unit 4 Lesson 15: Evaluate Expressions
Generated from Word Problems
Directions: Evaluate the expression.
1. The expression
b
+ 0.08
b
can be used to find the total cost of an item with
8% sales tax. Use the expression to find the total price of a blouse that
costs $34.
2. The expression
r • t
can be used to find the distance where
r
represents
rate and
t
represents time. Use the expression to find the distance
traveled by someone who drove at a rate of 60 miles/hour for 12 hours.
3. The expression
l • w • h
can be used to find the volume of a rectangular
prism where
l
represents length,
w
represents width, and
h
represents
height. Use the expression to find the volume of an object that has a
length of 7 yds, a width of 3 yds and a height of 2 yds.
Example: The expression
s
+ 0.05
s
can be used to find the total cost of an
item with 5% sales tax. Use the expression to find the total cost of a $68 pair
of shoes.
Steps:
1. Read the problem.
2. Use an expression to represent the situation.
3. Replace the variable with the number given.
4. Evaluate following order of operations.
s
+ 0.05
s
$68 + (0.05)$68
$68 + $3.40
$71.40
Copyright © Swun Math Grade 6 Unit 4 Lesson 15 P HW
4. The expression
t
+ 0.06
t
can be used to find the total cost of an item with
6% sales tax. Use the expression to find the total price of a toy that costs
$24.
5. The expression
1
/
2
b • h
can be used to find the area of a triangle where
b
represents the base and
h
represents the height. Use the expression to
find the area of a triangle with a base of 18 cm and a height of 28 cm.
6. The expression
c
+ 0.09
c
can be used to find the total cost of an item with
9% sales tax. Use the expression to find the total price of a coat that costs
$78.
7. The expression 2
l
+ 2
w
can be used to find the perimeter of a rectangle
where
l
represents length and
w
represents width. Use the expression to
find the perimeter of a rectangular lawn that has a length of 23 ft and a
width of 12 ft.
Homework
Unit 4 Lesson 15: Evaluate Expressions
Generated from Word Problems