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Interim 1 10-2012

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261 / .2
- 103 / .45

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111 / .94
+ 210 / .9

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3.22/9 - (-38/9)

/ A. -27/9
/ B. 51/9
/ C. 61/9
/ D. -1 2/3

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4.51/5 + (-34/5)

/ A. 93/5
/ B. 22/5
/ C. 3
/ D. 12/5

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5. Simplify:|7|

/ A. -7
/ B. 7
/ C. 0
/ D. 70

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6. Simplify:|-3|

/ A. -3
/ B. 0.3
/ C. 3
/ D. 0

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7. Simplify the following expression:

(-26) - (-8)

/ A. -26
/ B. 10
/ C. -18
/ D. 26

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8. Simplify the following expression:

(-31) - 15

/ A. -46
/ B. 46
/ C. -16
/ D. 16

Real World Problems

9.The average daily high temperature in Montreal last week was 14°. This week's average daily high temperature is supposed to be 22° lower. If the high temperature on Friday is equal to this week's average daily high temperature, which of the following could be Friday's high temperature?

/ A. 36°
/ B. -30°
/ C. -8°
/ D. -1°

Real World Problems

10.Lyndon wants to buy some shade netting to cover his garden during the hottest part of the summer. If the dimensions of Lyndon's rectangular garden are22 feet by 23 feet, what is the area of the shade netting he will need?

/ A. 24 square feet
/ B. 26 square feet
/ C. 25 square feet
/ D. 27 square feet

Real World Problems

11. Colby is making a home video consisting of a 5-minute introduction followed by several short skits. Each skit is9 minutes long. If Colby's video is 167 minutes long, how many skits are in his video?

/ A. 18
/ B. 23
/ C. 19
/ D. 13

Real World Problems

12. Mike put 135 baseballs into 9 trash bins. He put the same number of baseballs in each bin. He took 5 trash bins of baseballs to the baseball field. How many baseballs did Mike take?

/ A. 90
/ B. 82
/ C. 75
/ D. 221

Real World Problems

13.Kiku is preparing for her science test. On Monday, she studied for 2 1/4 hours. On Tuesday, she studied for 1 1/4 hours. On Wednesday she studied for 2 1/2 hours. How many hours has Kiku studied in all?

/ A. 11 1/2 hours
/ B. 5 3/4 hours
/ C. 6 hours
/ D. 6 1/4 hours

Real World Problems

14. The cake that Larry is baking requires 1 cup of sugar. Larry is adding sugar to a bowl using a measuring scoop. In the first scoop, he adds 7/8 cup of sugar. In the second scoop, he adds 5/8 cup of sugar. Has Larry measured the sugar correctly?

/ A. No, he still needs to add 1/8 cup of sugar.
/ B. No, he has added 1/2 cup extra.
/ C. No, he has added 1/8 cup extra.
/ D. Yes, he has added the correct amount of sugar.

Real World Problems

15.

Rainfall

Month / Inches of Rain
April / 1.19
May / 1.2
June / 1.2

Using the table above, what was the total rainfall for these three months?

/ A. 5.59 inches
/ B. 3.03 inches
/ C. 4.19 inches
/ D. 3.59 inches

Real World Problems

16.

For a Chinese New Year celebration, James and Zhou are making a dragon costume similar to the one shown above.
In total, the costume requires 58.7 meters of fabric. Zhou already has10 meters of fabric, and James just purchased23.3 meters of fabric. How much more fabric is needed for the costume?

/ A. 33.3 meters
/ B. 35.4 meters
/ C. 25.4 meters
/ D. 48.7 meters

Linear Equations

17. Which value for x makes the sentence true?

9 = 5x + 4

/ A. 3
/ B. 1
/ C. 2.6
/ D. 2

Linear Equations

18. What is the last step when solving the equation below forx?

2x - 6 = 26

/ A. Divide each side of the equation by 2.
/ B. Add 2 to each side of the equation.
/ C. Multiply each side of the equation by 2.
/ D. Subtract 2x from each side of the equation.

Linear Equations

19. What is the first step when solving the equation below for x?

3x + 2 = 2

/ A. Divide each side of the equation by 2.
/ B. Add 2 to each side of the equation.
/ C. Subtract 3 from each side of the equation.
/ D. Subtract 2 from each side of the equation.

Linear Equations

20.

(1/4) (7x + 8) = 5

What is the first step when solving the above equation for x?

/ A. Multiply each side by 4.
/ B. Add 4 to each side.
/ C. Subtract 7x from each side.
/ D. Subtract 4 from each side.

Linear Equations

21. Which value for x makes the sentence true?

2x - 3 = 7

/ A. 8
/ B. 12
/ C. 5
/ D. 2

Linear Equations

22. Which value for x makes the sentence true?

/ A.
/ B.
/ C.
/ D.

Linear Equations

23. Which value for y makes the sentence true?

/ A.
/ B.
/ C.
/ D.

Linear Equations

24. Micah has an electricity plan where he is charged a monthly fixed rate of $2.64 and a usage fee of $0.09 per kilowatt-hour. If Micah was charged $83.64 for electricity last month, how much electricity did he use?

/ A. 929 kilowatt-hours
/ B. 81 kilowatt-hours
/ C. 32 kilowatt-hours
/ D. 900 kilowatt-hours

Properties of Arithmetic

25. Which of the following equations is true?

/ A. 3 ÷ 2 ÷ 1 = 1 ÷ 2 ÷ 3
/ B. 3 + 2 + 1 = 1 + 2 + 3
/ C.3 - 2 - 1 = 1 - 2 - 3
/ D. 3 + 2 × 1 = 1 + 2 × 3

Properties of Arithmetic

26. What property is shown below?

2 × (4 × 9) = (2 × 4) × 9

/ A. Associative
/ B. Distributive
/ C. Commutative
/ D. Equality

Properties of Arithmetic

27. What property is shown below?

3 × (5 + 9) = (3 × 5) + (3 × 9)

/ A. Distributive
/ B. Transitive
/ C. Equality
/ D. Associative

Properties of Arithmetic

28. What property is shown below?

175 + 0 = 175

/ A. Associative Property of Zero
/ B. Identity Property of Multiplication
/ C. Identity Property of Addition
/ D. Commutative Property of Addition

Properties of Arithmetic

29. Which property is illustrated by the statement below.

/ A. associative property of addition
/ B. inverse property of multiplication
/ C. inverse property of addition
/ D. distributive property of addition

Properties of Arithmetic

30.Indicate which property is illustrated below.

7x + 10y / = / 10y + 7x
/ A. identity
/ B. associative
/ C. distributive
/ D. commutative

Properties of Arithmetic

31. Indicate which property is illustrated in Step 2.

Step 1 / 5x + 2 + 7x + 12 / = / (5x + 2) + (7x + 12)
Step 2 / = / 5x + (2 + 7x) + 12
Step 3 / = / 5x + (7x + 2) + 12
Step 4 / = / (5x + 7x) + (2 + 12)
Step 5 / = / (5 + 7)x + (2 + 12)
Step 6 / = / 12x + 14
/ A. commutative
/ B. distributive
/ C. arithmetic fact
/ D. associative

Properties of Arithmetic

32. Indicate which property is illustrated in Step 4.

Step 1 / 12x + 5 + 8x + 9 / = / (12x + 5) + (8x + 9)
Step 2 / = / 12x + (5 + 8x) + 9
Step 3 / = / 12x + (8x + 5) + 9
Step 4 / = / (12x + 8x) + (5 + 9)
Step 5 / = / (12 + 8)x + (5 + 9)
Step 6 / = / 20x + 14
/ A. arithmetic fact
/ B. commutative
/ C. associative
/ D. distributive