Chapter
7-1
NAME
DATE
PERIOD
Homework Practice
Solve and Write Addition Equations
Solve e a c h e q u a t i o n . C h e c k y o u r solution.
4. r + 9 = 16
2. 7 + ^ - 1 4
~ 7
- 7
3. ^ + 4 = 12
5. 18 = r + 8
6. 16 =
11+f
9. 7.8 = 3.5 + a
13. ALGEBRA What is the value ofrei f 15 +
= 27?
RETAIL STORES T h e table s h o w s t h e
m o n t h l y e a r n i n g s of some of the r e t a i l
stores i n a city. U s e the table
to a n s w e r E x e r c i s e s 14 a n d 15.
MONTHLY RETAIL EARNINGS
Store
14. Sunny Spot's earnings were $8,329 more
t h a n t h a t of Silver Sky. W r i t e and solve
an addition equation to find Silver Sky's
earnings.
Sunny Spot
$52,800
Griffin's Web
$43,757
Kaylee's Magic
Gift's Galore
Silver Sky
Huntley's Creek
-5
Earnings
$121,113
$57,532
m
m
-
15. W r i t e and solve a n addition equation to find Huntley's Creek's earnings i f the t o t a l
monthly earnings for a l l the stores is $354,386.
IHE^SSSiBiSHiSfe
Chapter 7
For more examples, go to glencoe.com.
105
Course 1
NAME
DATE
PERIOD
PrbUiiii-Solving Practice
Solve and Write Addition Equations
F o r E x e r c i s e s 1-3, use the table of w a t e r s l i d e l e n g t h s .
L e n g t h s of W a t e r s l i d e s (ft)
The Cobra
63
Sea Snake
52
Shme Shp
a
Water W h i p
75
Wave Maker
104
1. The Water Wlaip is 7 feet longer t h a n
the Slime Slip. W r i t e and solve a n
addition equation to find the length of
the Slime Slip.
^
2. I f a certain slide was 12 feet longer, i t
would be the same length as the Water
Whip. W r i t e and solve an addition
equation to find the name of this
waterslide.
3. A new slide t h a t is still under
construction w i l l be 156 feet long. This
is the same l e n g t h as two of the
existing slides p u t together. One of the
slides is t h e Sea Snake. W r i t e and solve
an addition equation to f i n d the name
of the other water slide.
4. STUNT FLYER A s t u n t airplane is flying
at 150 feet. I t ascends to 325 feet. W r i t e
and solve a n equation to find the
change i n altitude of the airplane.
i
5. SAVINGS Cornelius is saving money to
buy a jacket t h a t costs $47. He has
already saved $25. W r i t e and solve an
eqviation to find how much more money
Cornelius needs to save.
Chapter 7
106
6. RECYCLING Bonnie has 27 more cans
t h a n Jackie. I f she has 56 cans, w r i t e
and solve an equation to find how many
cans Jackie has.
^.
Course 1