Comparison Equations
1. It takes Martin three times as long to do his paper route as it does to do his chores. If it takes him 21 minutes to do his paper route, write as equation that shows how long it takes him to do his chores?
What is 3 x c = 21? c = 7
6. Happy Acres Farm has 4 cows. They have 8 times as many chickens as cows. How many chickens are at Happy Acres Farm?
What is 32 chickens?
11. Lucas has $33 in a savings account. He is saving to buy a new skateboard. The skateboard costs $78. If Lucas saves $5 each week, in how many weeks will he have enough saved to buy the skateboard?
What is 9 weeks?
16. Jenn will use 18 connecting cubes to make a model of a park. The model will be in the shape of a rectangle. In how many different ways can Jenn make the model of the park? Hint: list the factors
1,18 2,9 3,6
21. Caitlin's teacher wrote a row of numbers following a pattern. 8, 14,20,26,... What should the next number two numbers be?
What is 32 and 38
2. PE lasts for 50 minutes. If lunch is half the time of PE, how long is lunch? Write an equation to show your answer.
What is 2 x 25 = 50 OR 50/2 = 25
7. On Friday afternoon, 40 books were checked out of the library. That is 5 times as many as were checked out on Monday. How many books were checked out on Monday?
What is 8 books?
12. A family is driving 885 miles to a family reunion. They drove 328 miles the first day and 285 miles the second day. How many miles should they drive the third day to reach their destination?
What is 272 miles?
17. List all the factors of 54.
What is (1, 2, 3, 6, 9, 18, 27, 54)?
22. Roberto wrote the number 60. If the rule is subtract 3, what is the fifth number in Roberto's pattern?
What is 48?
3. Tiffany's sunflower is 5 inches tall. Devon's sunflower is 20 inches tall. How many times as tall as Tiffany's sunflower compared to Devon's sunflower?
What is 4 times as tall?
8. Sam worked a total of 36 hours over two weeks. He worked twice as many hours in the second week as the first. How many hours did he work in the first week?
What is 12 hours?
13. There were 27 women and 22 men who stood in line to buy the first tickets for a new movie. By the end of the first hour, 4 times that number of tickets had been sold through the movie theater's website. How many tickets were sold in all?
What is 245 tickets?
18. What is the least common multiple of both 6 and 8?
What is 24?
23. An artist is arranging tiles in rows to decorate a wall. Each new row has 2 fewer tiles than the row below it. If the first row has 23 tiles, how many tiles will be in the seventh row?
What is 11 tiles?
4. Liam is 60 inches tall. He is 4 times taller than his boot. How tall is his boot?
What is 15 inches?
9. Mr. Anson made a walkway using 4 times as many red bricks as gray bricks. He used a total of 80 bricks. How many red bricks did Mr. Anson use?
What is 64 red bricks?
14. Ellie is reading a book that is 273 pages long. She has read 105 pages so far. How many pages does she have to read each day to finish the book in 8 days?
What is 21 pages each day?
19. Is 51 prime or composite? Prove it.
What is composite? 3,17 1,51
24. Rule: Double 2,4,8,16,.... Find the next three terms in the pattern.
What is 32,64,128
5. Maddie has 2 times as many stickers on her notebook as Meg. Together, they have 15 stickers. How many stickers are on Maddie's notebook?
What is 10 stickers?
10. Jasmine filled a large basket with some flowers. She filled a small basket with 5 flowers. The large basket has 5 times as many flowers as the small basket. How many flowers are in the large basket?
What is 25 flowers?
15. At the history museum, 47 girls and 39 boys are waiting for tour guides. Each tour guide can take up to 9 people on a tour. How many tour guides are needed so that all the students can tour the museum?
What is 10 tour guides?
20. Ramon tells his friend that he is learning about prime numbers in math class. His friend asks him to name all the prime numbers between 20 and 30. What numbers should Ramon name? Explain how you know.
What are 23 and 29? They are prime because both 23 and 29 have only two factors, one and the number itself. All the other numbers between 20 and 30 have more than two factors, so they are composite.
25. Rule: Multiple by 3 2,6,18,.... What are the next three terms in this pattern
What is 54,162,486