

Using Equations to Solve Word Problems
Presentation
•
Mathematics
•
8th Grade
•
Medium
Standards-aligned
Dorothy Morgano
Used 35+ times
FREE Resource
2 Slides • 10 Questions
1
Using Equations to Solve Word Problems
9/21/20

2
Know - Need - Plan
Identify important information
The variable will represent what you are trying to find
Write and solve an equation that models the situation.
Do NOT have your variable already isolated ex) 14 +12 =x
3
Multiple Choice
Which equation represents the following situation? A garden contains 75 flowers, each of which is either pink or white. If there are 37 pink flowers, how many white flowers are there?
37w=75
37−w=75
75w=37
37+w=75
4
Multiple Choice
Which equation represents the following situation?
If one roll of masking tape costs $1.51, how many rolls can Emma buy with $5.75?
1.15(5.75)=x
1.15x=5.75
5.75x=1.15
x=5.751.15
5
Multiple Choice
Which equation best represents the following situation?
Andrew has saved $55 toward the purchase of an IPOD. The IPOD costs $145. Which equation represents the amount Andrew needs to save to buy the IPOD?
55+x=145
55−x=145
145−55=x
145(55)=x
6
Multiple Choice
Which equation represents the following situation?
Jim paid a gym membership fee of $50, plus $20 per month. Jim has paid a total of $290 to the gym. Which equation matches this situation?
20+50m=290
20m+50=290
50m−20=290
7
Multiple Choice
Which equation represents the following situation?
A bag of candy was shared equally among 4 friends. Each friend gave away 7 pieces of candy. They each ended up with 8 pieces of candy. How much candy was originally in the bag?
7c−4=8
4c+7=8
c4−7=8
4 c−7=8
8
Multiple Choice
Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.
7x+35=63
7x−35=63
7x=63
35x+7=63
9
Fill in the Blanks
Type answer...
10
Multiple Choice
Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. How many rides did Penelope go on if she spends $35 in all?
.50x+20=35
.50+20x=35
.50x−20=35
11
Multiple Select
Eugene spent half of his weekly allowance at the movies. To earn more money, his parents let him clean the windows in the house for $7. What is his weekly allowance if he ended with $12?
Choose ALL acceptable equations below.
2a+7=12
2a+7=12
21a+7=12
12
Multiple Select
Maria bought seven boxes. A week later half of all her boxes were destroyed in a fire. There are now only 22 boxes left. With how many did she start with?
2b+7=22
2b+7=22
Using Equations to Solve Word Problems
9/21/20

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