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Prealgebra 2e

Practice Test

Prealgebra 2ePractice Test

Practice Test

484.

Locate and label 0,2,−4,0,2,−4, and −1−1 on a number line.

In the following exercises, compare the numbers, using <or>or=.<or>or=.

485.
  1. ⓐ −6__3−6__3
  2. ⓑ −1__−4−1__−4
486.
  1. ⓐ −5__|−5|−5__|−5|
  2. ⓑ −|−2|__−2−|−2|__−2

In the following exercises, find the opposite of each number.

487.
  1. ⓐ −7−7
  2. ⓑ 88

In the following exercises, simplify.

488.

− ( −22 ) − ( −22 )

489.

| 4 − 9 | | 4 − 9 |

490.

−8 + 6 −8 + 6

491.

−15 + ( −12 ) −15 + ( −12 )

492.

−7 − ( −3 ) −7 − ( −3 )

493.

10 − ( 5 − 6 ) 10 − ( 5 − 6 )

494.

−3 ⋅ 8 −3 ⋅ 8

495.

−6 ( −9 ) −6 ( −9 )

496.

70 ÷ ( −7 ) 70 ÷ ( −7 )

497.

( −2 ) 3 ( −2 ) 3

498.

− 4 2 − 4 2

499.

16 −3 ( 5 −7 ) 16 −3 ( 5 −7 )

500.

| 21 − 6 | − | −8 | | 21 − 6 | − | −8 |

In the following exercises, evaluate.

501.

35 − a when a = −4 35 − a when a = −4

502.

( −2 r ) 2 when r = 3 ( −2 r ) 2 when r = 3

503.

3 m − 2 n when m = 6 , n = −8 3 m − 2 n when m = 6 , n = −8

504.

− | − y | when y = 17 − | − y | when y = 17

In the following exercises, translate each phrase into an algebraic expression and then simplify, if possible.

505.

the difference of −7 and −4

506.

the quotient of 2525 and the sum of mm and n.n.

In the following exercises, solve.

507.

Early one morning, the temperature in Syracuse was −8°F.−8°F. By noon, it had risen 12°.12°. What was the temperature at noon?

508.

Collette owed $128$128 on her credit card. Then she charged $65.$65. What was her new balance?

In the following exercises, solve.

509.

n + 6 = 5 n + 6 = 5

510.

p − 11 = −4 p − 11 = −4

511.

−9 r = −54 −9 r = −54

In the following exercises, translate and solve.

512.

The product of 15 and x is 75. The product of 15 and x is 75.

513.

Eight less than y is −32. Eight less than y is −32.

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