1. Splash Screen

2. Solve multiplication equations.
formula
Main Idea/Vocabulary

3. KC 1

4. Solve Multiplication Equations
Solve 39 = 3y. Check your solution.
39 = 3y Write the equation.
Divide each side of the equation by 3.
13 = y 39 ÷ 3 = 13
Answer: The solution is 13.
Check
39 = 3y Write the original equation.
13 = 3(13) Replace y with 13. ?
39 = 39 
Example 1

5. Solve 6m = 42. Check your solution.
A. 3
B. 7
C. 36
D. 48 A B C D
Example 1

6. Solve Multiplication Equations
Solve –4z = 60. Check your solution.
–4z = 60 Write the equation.
Divide each side of the equation by –4.
z = ÷ (–4) = –15
Answer: The solution is –15.
Check
–4z = 60 Write the original equation.
–4(–15) = 60 Replace z with –15. ?
60 = 60 
Example 2

7. Solve –64 = –16b. Check your solution.
A. –48
B. –4
C. 4
D. 80 A B C D
Example 2

8. Variable Let n represent the number of invitations mailed.
MAIL Serena went to the post office to mail some party invitations. She had $6.15. If each invitation needed a $0.41 stamp, how many invitations could she mail?
Words Total is equal to cost of each stamp times number of invitations mailed.
Variable Let n represent the number of invitations mailed.
Equation 6.15 = 0.41n
Example 3

9. Answer: Serena could mail 15 invitations.
6.15 = 0.41n Write the equation.
15 = n ÷ 0.41 = 15
Answer: Serena could mail 15 invitations.
Example 3

10. TRAVEL Jordan drove 273. 6 miles in 4. 8 hours
TRAVEL Jordan drove miles in 4.8 hours. What was Jordan’s average speed?
A. 57 mph
B. 58 mph
C. 60 mph
D. 62 mph A B C D
Example 3

11. Answer: It would take Ms. Wang 5 hours to swim 3 miles.
SWIMMING Ms. Wang swims at a speed of 0.6 mph. At this rate, how long will it take her to swim 3 miles?
You are asked to find the time t it will take to travel a distance d of 3 miles at a rate r of 0.6 mph.
d = rt
3 = 0.6t
Answer: It would take Ms. Wang 5 hours to swim 3 miles.
Example 4

12. COOKIES Debbie spends $6. 85 on cookies at the bakery
COOKIES Debbie spends $6.85 on cookies at the bakery. The cookies are priced at $2.74 per pound. How many pounds of cookies did Debbie buy?
A pounds
B. 2.5 pounds
C pounds
D pounds A B C D
Example 4

13. End of the Lesson
End of the Lesson