Chapter

7-1 NAME DATE

Homework Practice Solve and Write Addition Equations

PERIOD

Solve each equation. C h e c k your solution.

2. 7 + ^ - 1 4 ~ 7 - 7

4. r + 9 = 16 5. 18 = r + 8

3. ^ + 4 = 12

6. 16 = 11+f

9. 7.8 = 3.5 + a

13. ALGEBRA What is the value of re i f 15 + = 27?

RETAIL STORES T h e table shows the monthly earnings of some of the r e t a i l stores i n a city. Use the table to a n s w e r E x e r c i s e s 14 and 15.

14. Sunny Spot's earnings were $8,329 more than that of Silver Sky. Write and solve an addition equation to find Silver Sky's earnings.

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M O N T H L Y R E T A I L E A R N I N G S Store E a r n i n g s

Sunny Spot $52,800 Griffin's Web $43,757 Kaylee's Magic $121,113 Gift's Galore $57,532 Silver Sky m Huntley's Creek m

15. Wri te and solve an addition equation to f ind Huntley's Creek's earnings i f the tota l monthly earnings for al l the stores is $354,386.

IHE SSSiBiSHiSfe For more examples, go to glencoe.com.

Chapter 7 105 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 watersl ide lengths.

L e n g t h s of Waterslides (ft) The Cobra 63 Sea Snake 52 Shme Shp a

Water Whip 75 Wave Maker 104

1. The Water Wlaip is 7 feet longer than the Slime Slip. Write and solve an addition equation to f ind 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. Write and solve an addition equation to find the name of this waterslide.

3. A new slide that is s t i l l under construction w i l l be 156 feet long. This is the same length as two of the existing slides put together. One of the slides is the Sea Snake. Wr i te and solve an addition equation to f ind the name of the other water slide.

4. STUNT FLYER A stunt airplane is f ly ing at 150 feet. I t ascends to 325 feet. Write and solve an equation to find the change i n altitude of the airplane.

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5. SAVINGS Cornelius is saving money to buy a jacket that costs $47. He has already saved $25. Write and solve an eqviation to f ind how much more money Cornelius needs to save.

6. RECYCLING Bonnie has 27 more cans than Jackie. I f she has 56 cans, wr i t e and solve an equation to find how many cans Jackie has. ^ .

Chapter 7 106 Course 1