MTH011A |Math Foundations II | Unit 1 Graded Assignment| Numbers and Operations
Name: / Date:Answer Key
Unit 1 Assignment
Award points for answers as shown below. Starter feedback for correct and incorrect answers is in red. Use or adapt the feedback in this Answer Key as you grade each student paper. If you have suggestions for improving this key, send them to .
Solve the following problems:
(1 point)
1. Round this number to the nearest hundred. 5,681
Answer: 5,700
(1 point)
2. Round this number to the nearest hundredth. 7.9641
Answer: 7.96
(1 point)
3. Choose the best estimate. 2897 x 22 =
50,000
60,000
40,000
10,000
Answer: 60,000
(1 point)
4. Does estimation give an exact answer?
Answer: no
(1 point)
5. Solve this problem.
Answer: 270,000
(1 point)
6. Solve this problem.
Answer: 277
(1 point)
7. Which answer shows this number correctly in exponential form? 8 x 8 x 8 x 8 x 8
8 x 5
5 x 8
Answer: 85
(1 point)
8. =
Answer: 4
(1 point)
9.
Answer: 25
(1 point)
10.
Answer: 100
(1 point)
11.
Answer: 8
(1 point)
12. During a 1-hour period, a TV show has 43 minutes of programming. The rest of the time is for commercials. How much time is used every hour for commercials?
Answer: 17 minutes
(1 point)
13. Every night, Mary spends 3 hours doing homework, 30 minutes practicing the piano, and 35 minutes talking on the phone. What is the total number of minutes Mary spends doing these activities?
Answer: 4 hours 5 minutes
(1 point)
14. A Chorus Line was one of the longest running Broadway plays with 6,138 performances. If there were 9 performances per week, how many weeks did the show run?
Answer: 682 weeks
(1 point)
15. Which application should be used to solve this problem?
A 747 jet flying from New York City to Hong Kong can carry about 160 passengers. The plane travels at an average speed of 715 mph. The distance from New York to Hong Kong is 8,054 miles. How long is the flight from New York to Hong Kong?
addition
subtraction
multiplication
division
Answer: division
(1 point)
16. To pay for a swimming pass, Cameron earned $65 by mowing lawns. Cameron plans to go swimming for 10 weeks this summer. He can buy a pass for $60, pay the regular price of $1.25 each time, or buy a permit for $25 plus 50 cents each time he swims. Cameron estimates that he will go swimming 5 times per week. Which is the best deal?
a pass
a permit
the regular price
Answer: a permit
(1 point)
17. There are 3,550 seats in the Fairview High School stadium. How many rows are in the stadium if each row holds 50 people?
Answer: 71 rows
(1 point)
18. Cade bought a baseball book at the souvenir shop at the National Baseball Hall of Fame in Cooperstown, New York. The book cost $7.58, and Cade paid for it with a $10.00 bill. How much change should he receive?
Answer: $2.42
(1 point)
19. Shawn drew a rectangle that had a width of 4.2 inches and a length of 8.1 inches. Find the perimeter of Shawn's rectangle.
Answer: 24.6 inches
(1 point)
20. What property is illustrated by this problem? 7 x 8 = 8 x 7
distributive property
associative property
commutative property
Answer: commutative property
(1 point)
21. What property is illustrated by this problem? (5 x 6) x 3 = 5 x (6 x 3)
distributive property
associative property
commutative property
Answer: associative property
(1 point)
22. What number should fill in the blank? 36 x 8 = ( ___ + 6 ) x 8
Answer: 30
(1 point)
23. Tara charges $6.00 per hour to babysit. On Friday night, she babysat for 4 hours and for 3 hours more on Saturday night. How much money did Tara make altogether on Friday and Saturday night?
Answer: $42.00
(1 point)
24. Which property allows the grouping of numbers in parentheses to change without changing the answer?
distributive property
associative property
zero property
Answer: associative property
(1 point)
25.
Answer: 0.1216
(1 point)
26.
Answer: 0.000000336
(1 point)
27. If the Japanese yen is worth $.0090, what would the value of 3,850 yen be in U.S. dollars?
Answer: $34.65
(1 point)
28.
Answer: 12
(1 point)
29.
Answer: 0.06942
(1 point)
30. A pharmacist has 808.4 grams of allergy medicine to put into capsules. He must put 37.6 grams of the medicine into each capsule. How many capsules can be filled by the pharmacist? Do not round the answer.
Answer: 21.5
(1 point)
31. Which of these numbers is prime? 30 31 32 33 34
Answer: 31
(1 point)
32. Find the greatest common factor (GCF) for this pair of composite numbers.
18 ______21
Answer: 3
(1 point)
33. Use the GCF to reduce this fraction to the lowest terms.
Answer:
(1 point)
34. Compare these fraction pairs.
Answer:
(1 point)
35. Choose the reciprocal of this number.
Answer:
(1 point)
36. Change this fraction to a decimal.
Answer: 0.25
(1 point)
37. Solve this problem. Choose the answer in lowest terms.
Answer:
(1 point)
38. Solve this problem. Choose the answer in lowest terms.
Answer: 9
(1 point)
39.
Answer:
(1 point)
40.
Answer:
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