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8th Math - Pre-Algebra > Test 3 (Nine-Weeks Exam), Units 1 - 2 > Flashcards

Test 3 (Nine-Weeks Exam), Units 1 - 2 Flashcards

1
Q

38294

63815

+92784

A

194893

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2
Q

51723

-49725

A

1998

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3
Q

625

x438

A

273750

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4
Q

5 7/9

+3 1/5

A

5 35/45

+3 9/45

8 44/45

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5
Q

21 3/8

  • 17 5/6
A

21 9/24 = 20 33/24

  • 17 20/24 = - 17 20/24
                      3 13/24
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6
Q

1 4/7 x 4 1/5 =

A

11/7 x 21/5

11/1 x 3/5

33/5

= 6 3/5

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7
Q

28.4 x .063

A

1.7892

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8
Q

15 % of $460

A

.15 x 460 = $69

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9
Q

1 1/2% of $900

A

.015 x 900 $13.50

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10
Q

15 is 25% of what number?

A

15 divided by .25 1500 divided by 25 60

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11
Q

40 is what percent of 50?

A

40/50 = 4/5 = 80%

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12
Q

124% of 16

A

1.24 x 16 19.84

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13
Q

3/8 divided by 1/16 =

A

3/8 x 16/1 = 3/1 x 2/1 = 6

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14
Q

3760 divided by 235

A

16

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15
Q

33.84 divided by 9.4

A

3.6

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16
Q

9 hr. 8 min. 6 hr. 42 min. +8 hr. 39 min. ____________

A

9 hr. 8 min. 6 hr. 42 min. +8 hr. 39 min. ____________ 23 hr. 89 min. (89 min is same as 1 hr 29 min) 23 hr. + 1 hr. 29 min. ____________ 24 hr. 29 min.

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17
Q

5 lb. -3 lb. 7 oz. —————

A

5 lb. = 4 lb. 16 oz. -3 lb. 7 oz. -3 lb. 7 oz. ————— —————- 1 lb. 9 oz.

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18
Q

8 gal. 3 qt. x 7 —————-

A

8 gal. 3 qt. x 7 —————- 56 gal. 21 qt. (21 qt is same as 5 gal 1qt) 56 gal. +5 gal. 1 qt. —————– 61 gal. 1 qt.

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19
Q

15 lb. 5 oz. divided by 7

A

2 lb. 3 oz. —————– 7 | 15 lb. 5 oz. (1 lb. left over is 16 oz. so add -14 21 16 to the 5 & then divide 7 —- into it giving you 3) 1 lb. -21 —— 0

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20
Q

_____ lb. = 196 oz.

A

196 divided by 16 = 12.3

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21
Q

______ ft. = 4.8 yd.

A

4.8 x 3 = 14.4

22
Q

_______ gal. = 319 qt.

A

319 divided by 4 = 79.8

23
Q

______ da. = 11 hr.

A

11 divided by 24 = .5

24
Q

______ ft. = .5 mi.

A

.5 x 5280 = 2640

25
Q

T or F. The denominator of a fraction is below the fraction bar and tells how many equal parts the whole is divided into.

A

True

26
Q

T or F. 5 ft. 6 in. = 66 in.

A

True

27
Q

T or F. Percent means “hundredths.”

A

True

28
Q

T or F. The year 2006 was a leap year.

A

False

29
Q

T or F. Weight is dependent upon gravity.

A

True

30
Q

T or F. Speed = distance ————- time

A

True

31
Q

Using exponents, write the prime factors of 8.

A

23

32
Q

Round off 13,486 to the nearest hundred.

A

13,500

33
Q

Round off .4638 to the nearest thousandth.

A

.464

34
Q

Find the value of 3 + 5 x (2 - 1)

A

8

35
Q

Find the net profit on an item bought for $50 with a $6.30 overhead and sold for $75.

A

$75 - ($50 + $6.30)

$18.70

36
Q

Convert 1 1/2 ft. to inches.

A

1 1/2 x 12

18 in.

37
Q

Convert 312 quarts to gallons.

A

312 divided by 4

78 gallons

38
Q

Change 50 mi/hr to ft/sec (nearest tenth)

A

There are 5280 ft in a mile so 50 x 5280. There are 3600 seconds in a hour, so 1 x 3600. (Because there is an assumed 1 in front of the hour above)

264000 ft/3600 sec.

But they want it per 1 sec., so divide the 264000 by 3600 to get

73.3

39
Q

Simplify 21 hours 99 minutes.

A

Since there are 60 minutes in an hour, 99 minutes = 1 hr 39 min.

add that to 21 hours

= 22 hr. 39 min.

40
Q

Convert 6 quarts 2 pints to pints.

A

There are 2 pints in a quart, so multiply 2 x 6 quarts = 12 pints. Add the extra 2 pints, giving you 14 pints.

41
Q

Find the distance traveled at 52 miles per hour for 5 hours.

A

52 x 5 = 260 miles

42
Q

Multiply 9 bushels 3 pecks by 8.

A

9 bu. 3 pk.

x 8

72 bu. 24 pk.

+6 bu.

78 bu.

24 pk = 6 bu because there are 4 pk in a bu, so add 6 to 72 to give the answer of 78 bu.

43
Q

Convert 176 fluid ounces to pints.

A

There are 16 fl. oz. in a pint, so 176 divided by 16

11 pints

44
Q

Subtract 17% from 100%

A

83%

45
Q

The number of feet in a mile

A

5280

46
Q

Subtract 2/3 from 3/4

A

3/4 = 9/12

-2/3 = 8/12

1/12

47
Q

The Criswell family left for their vacation at 7:15 A.M. Eastern Time and arrived at the amusement park at 5:20 P.M. Central Time. How long did it take the family to drive?

A

7:15 Eastern is 6:15 Central.

From 6:15 to 12 noon is 5 hours 45 min.

From noon to 5:20 is 5 hours 20 min.

Add those to get 10 hours 65 min.

65 min. is 1 hour 5 min, so add that to the 10 hours

11 hours 5 min

48
Q

A train traveled 399 miles in 7 hours. Find the train’s speed.

A

399 miles/7 hours

399 divided by 7 = 57 miles per hour

49
Q

Mr. West bought merchandise totaling $3,500. His overhead was $1,200. He sold the merchandise for $5,000. Find his percent of profit based on the cost, to the nearest whole percent.

A

NP = SP - (C + O)

NP = $5000 - ($3500 + $1200)

NP = 5000 - 4700

NP = 300

%P = NP/C

%P = 300/3500

%P = 3/35

%P = 8.5 = 9%

50
Q

Mrs. Fentry bought a dress that was 12% off. The list price was $54.50. Find the sale price.

A

The price was 12% off, so she paid 88% of the list price.

54.50

x .88

  436000

+436000

479600

$47.96

8th Math - Pre-Algebra (43 decks)

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