Practice Exercises: Topics in Pre-Algebra

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Practice Exercises:
Pre-Algebra

Unit 7 > Lesson 6 of 8

Short Answer Directions:	Read each question. Click once in an ANSWER BOX and type in your answer. After you click ENTER, a message will appear in the RESULTS BOX to indicate whether your answer is correct or incorrect. To start over, click CLEAR. Answers should be entered as integers.
Multiple Choice Directions:	Select your answer by clicking on its button. Feedback to your answer is provided in the RESULTS BOX. If you make a mistake, choose a different button.

1. Evaluate this arithmetic expression:
7 x 8 - 6 ÷ 2 + 18 x 3

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2. Evaluate this arithmetic expression:

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3. Evaluate this arithmetic expression:
15 - 2 x 3² ÷ 6

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4. Evaluate this arithmetic expression:
36 ÷ (7-4)² + 21

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5. Evaluate this arithmetic expression:
[54 - 3(2 + 4)] ÷ ^-9

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6. Evaluate this arithmetic expression:

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7. Which algebraic expression correctly represents this phrase?
Twenty-five less than three times a number.

25 - 3x
3 - 25x
3x - 25
None of the above.

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8. Which algebraic expression correctly represents this phrase?
The quotient of a number and seven, decreased by ten.

7p - 10

10 - 7p

None of the above.

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9. Which sentence correctly represents this algebraic equation?
2w - 9 = 32

Nine less than twice a number is thirty-two.
Nine is thirty-two more than twice a number.
Nine is thirty-two less than twice a number.
None of the above.

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10. Which sentence correctly represents this algebraic equation?

The quotient of a number and forty-two is seven.
The quotient of forty-two and a number is seven.
The quotient of seven and forty-two is a number.
None of the above.

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