Unit 12 Study Guide

8/14/2019 Unit 12 Study Guide

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11. Use the diagram to help you solve the problems.

a. c 2 gal

b. 22 qt gal qt

c. 10 c qt c

d. 15 pt qt pt

e. 3 qt c

=

=

=

=

=

12. Calculate the volume of each rectangular prism.

a.

2 cm

3 cm9 cm

b.

3 m4 m

8 m

13. Solve the open sentence.

642123 123230. .+ = d

14. Find the solution of each open sentence.

26 69 12 15. .= + x

15. Solve the open sentence.

94 658 92 801. . = d


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16. Solve.m =26 6 271. .

17. Write the set of fractions in order from smallest to largest.

1

14

4

14

2

14

7

14

9

14, , , ,

Order the fractions from smallest to largest.

18.1

6

3

4

14

24

12

19

5

8, , , ,

19. 3

9

4

32

9

11

5

7

2

14, , , ,

20. 28

1326

510

26

1133

, , , ,

21.3

18

9

81

4

16

1

5

15

45, , , ,

22. There are three schools in Somertown. Each school has 239 students. A friend estimates there are 1,200

students at all three schools. Is this reasonable? Explain.

23. Katie is buying a package of erasers at a store. The store sells packages of 23 erasers for $2.30 and 28 erasersfor $1.96. Which package offers the better buy? Explain.


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24. Use the sign below to solve the problem. Explain how you found your answer.

30 cents each6 for $1.60

$3.20 a dozen

Joey goes to Doreens Delicious Doughnuts to buy doughnuts for the class party. What is the least amount of

money he will have to pay for 50 doughnuts? Explain.


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[1]

_____ miles;

Hours

3

5

Miles

295

[2]

[3]

a. $__________

b. $__________

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

a. Volume = cm

b. Volume = m

3

3

[13]

[14] Solution:

[15]


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[16]

[17]

[18] smallest

largest

[19] smallest

largest

[20] smallest

largest

[21] smallest

largest

[22]

Explanation:

[23]

Answer: __________

Explanation:

[24]


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[1]177 miles;

Hours 3

Miles

1 2 4 5

59 118 177 236 295

[2] $15.00

[3]

a. $ .1600 per hour

b. $ .24000 per week

[4] 1 and 12, 2 and 6, 3 and 4

[5] 1, 2, 4, 7, 14, and 28

[6] 1, 2, 4, 8, 16, and 32

[7] 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84

[8] 1, 2, 3, 6, 11, 22, 33, and 66

[9] >

[10] 12 0 09 0 01 0 001 13 2 3. . . . . ., , , , ,

[11]

a. 32 c

b. 5 gal 2 qtc. 2 qt 2cd. 7 qt 1 pt

e. 12 c

[12]

a. Volume = cm

b. Volume = m

3

3

54

96

[13] 765.353

[14] Solution: 14.54

[15] 1.857


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[16] 53.7

[17]

7

14

1

14

2

14

4

14

9

14, , ,,

[18]

3

4

12

19

1

6

14

24

5

8

, , , ,

[19]

3

9

4

32

2

14

5

7

9

11, , , ,

[20]

5

10

11

33

2

8

2

6

13

26, , , ,

[21] 4

16981

318

15

1545

, , , ,

[22] No. Explanation: 239 is about 200, and 200 3 600* = . 1,200 is twice as much as 600.

[23]The package of 28 erasers; Sample answer: The package of 23 erasers costs 10 per eraser, and the package o28 erasers costs 7 per eraser.

[24]

$13.40; Sample answer: If Joey buys four dozen at $3.20 per dozen and 2 for 30 cents each, the total cost wil

be 4 320 30 1340 + =$ . $ . .b g 2 cents

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Unit 12 Study Guide