1000 Flashcards WorkKeys Exam
What is a ratio? In a workplace report, 8 defective parts are found out of 200 parts produced.
Which mathematical term describes the comparison 8:200?
Ratio. A ratio compares two quantities using division. Here, the defect-to-production ratio is
8:200 or 1:25.
A percentage is a number expressed as a fraction of ______.
100. Percent means "per hundred."
A machine produced 480 units instead of the target 400 units. By what percent did production
exceed the target?
Difference = 80. Percent increase = (80 ÷ 400) × 100 = 20% increase.
A product price rises by 20% and then falls by 20%. Is the final price equal to the original price?
Why?
No. The decrease is based on the higher amount. Example: $100 → $120 → $96. Final price is
lower than original.
What is the mathematical meaning of mean in WorkKeys Applied Math problems?
Mean = Average. Add all values and divide by the number of values.
A worker records temperatures of 68°F, 70°F, 72°F, and 74°F. What is the mean temperature?
(68 + 70 + 72 + 74) ÷ 4 = 71°F.
Define median.
The middle value in an ordered data set.
What is the median of 5, 7, 8, 11, 20?
8 because it is the middle value.
Define mode.
The value occurring most frequently in a data set.
What is the mode of 12, 14, 14, 16, 18, 14, 20?
14, because it appears three times.
Page 1
,1000 Flashcards WorkKeys Exam
A shipping company charges $2.50 per package. What is the cost of shipping 36 packages?
36 × $2.50 = $90.00.
To convert a decimal to a percent, multiply by ______.
100
Convert 0.875 to a percentage.
0.875 × 100 = 87.5%.
Convert 45% to a decimal.
45 ÷ 100 = 0.45.
What is a proportion?
An equation showing two ratios are equal.
If 5 boxes weigh 40 pounds, how much do 12 boxes weigh at the same rate?
40 ÷ 5 = 8 lb per box; 12 × 8 = 96 pounds.
A worker earns $18 per hour and works 37 hours. What are the gross earnings?
37 × 18 = $666.
Define gross pay.
Total earnings before deductions such as taxes and insurance.
Define net pay.
Earnings remaining after deductions are subtracted from gross pay.
A store receives a 15% discount on a $2,000 order. How much is the discount?
0.15 × 2000 = $300.
What is the final price after a 15% discount on a $2,000 order?
$2,000 − $300 = $1,700.
Is 25% of 80 the same as 80% of 25? Explain.
Yes. Both equal 20 because multiplication is commutative.
Page 2
,1000 Flashcards WorkKeys Exam
Define unit rate.
A rate with a denominator of 1 unit.
A truck travels 360 miles in 6 hours. What is its unit rate?
360 ÷ 6 = 60 miles per hour.
Distance = Rate × ______.
Time.
A forklift travels at 8 mph for 2.5 hours. How far does it travel?
8 × 2.5 = 20 miles.
What is the area of a rectangle measuring 14 ft by 9 ft?
Area = 14 × 9 = 126 square feet.
Define perimeter.
Total distance around a figure.
What is the perimeter of a rectangle 12 ft long and 8 ft wide?
2(12 + 8) = 40 feet.
A storage room measures 20 ft by 15 ft. How many square feet of flooring are needed?
20 × 15 = 300 sq ft.
Define volume.
Amount of three-dimensional space an object occupies.
What is the volume of a box measuring 4 ft × 3 ft × 2 ft?
4 × 3 × 2 = 24 cubic feet.
A tank contains 120 gallons and uses 15 gallons per hour. How long before empty?
120 ÷ 15 = 8 hours.
Multiplying any number by zero leaves the number unchanged. Explain.
False. Any number multiplied by zero equals zero.
Page 3
, 1000 Flashcards WorkKeys Exam
A payroll clerk must calculate 7.5% tax on $850. How much tax is withheld?
0.075 × 850 = $63.75.
What is the difference between a decimal and a fraction?
A decimal uses place value; a fraction represents part of a whole using numerator and
denominator.
Convert 3/8 to a decimal.
3 ÷ 8 = 0.375.
Convert 0.625 to a fraction in simplest form.
5/8.
A worker needs 1.25 gallons of paint per room. How much paint is needed for 8 rooms?
1.25 × 8 = 10 gallons.
Define estimate.
A reasonable approximation used when an exact value is unnecessary.
A machine produced 1,248 parts. Estimate using the nearest hundred.
1,200 parts.
Which is larger, 0.5 or 0.45? Why do some people answer incorrectly?
0.5 is larger. Some mistakenly compare 50 and 45 without understanding decimal place value.
A recipe requires 3/4 pound of material per batch. How much is needed for 12 batches?
12 × 3/4 = 9 pounds.
What mathematical operation is typically used when finding a rate per unit?
Division.
A warehouse inventory increased from 2,400 units to 3,000 units. What is the percent
increase?
(600 ÷ 2400) × 100 = 25% increase.
Page 4
What is a ratio? In a workplace report, 8 defective parts are found out of 200 parts produced.
Which mathematical term describes the comparison 8:200?
Ratio. A ratio compares two quantities using division. Here, the defect-to-production ratio is
8:200 or 1:25.
A percentage is a number expressed as a fraction of ______.
100. Percent means "per hundred."
A machine produced 480 units instead of the target 400 units. By what percent did production
exceed the target?
Difference = 80. Percent increase = (80 ÷ 400) × 100 = 20% increase.
A product price rises by 20% and then falls by 20%. Is the final price equal to the original price?
Why?
No. The decrease is based on the higher amount. Example: $100 → $120 → $96. Final price is
lower than original.
What is the mathematical meaning of mean in WorkKeys Applied Math problems?
Mean = Average. Add all values and divide by the number of values.
A worker records temperatures of 68°F, 70°F, 72°F, and 74°F. What is the mean temperature?
(68 + 70 + 72 + 74) ÷ 4 = 71°F.
Define median.
The middle value in an ordered data set.
What is the median of 5, 7, 8, 11, 20?
8 because it is the middle value.
Define mode.
The value occurring most frequently in a data set.
What is the mode of 12, 14, 14, 16, 18, 14, 20?
14, because it appears three times.
Page 1
,1000 Flashcards WorkKeys Exam
A shipping company charges $2.50 per package. What is the cost of shipping 36 packages?
36 × $2.50 = $90.00.
To convert a decimal to a percent, multiply by ______.
100
Convert 0.875 to a percentage.
0.875 × 100 = 87.5%.
Convert 45% to a decimal.
45 ÷ 100 = 0.45.
What is a proportion?
An equation showing two ratios are equal.
If 5 boxes weigh 40 pounds, how much do 12 boxes weigh at the same rate?
40 ÷ 5 = 8 lb per box; 12 × 8 = 96 pounds.
A worker earns $18 per hour and works 37 hours. What are the gross earnings?
37 × 18 = $666.
Define gross pay.
Total earnings before deductions such as taxes and insurance.
Define net pay.
Earnings remaining after deductions are subtracted from gross pay.
A store receives a 15% discount on a $2,000 order. How much is the discount?
0.15 × 2000 = $300.
What is the final price after a 15% discount on a $2,000 order?
$2,000 − $300 = $1,700.
Is 25% of 80 the same as 80% of 25? Explain.
Yes. Both equal 20 because multiplication is commutative.
Page 2
,1000 Flashcards WorkKeys Exam
Define unit rate.
A rate with a denominator of 1 unit.
A truck travels 360 miles in 6 hours. What is its unit rate?
360 ÷ 6 = 60 miles per hour.
Distance = Rate × ______.
Time.
A forklift travels at 8 mph for 2.5 hours. How far does it travel?
8 × 2.5 = 20 miles.
What is the area of a rectangle measuring 14 ft by 9 ft?
Area = 14 × 9 = 126 square feet.
Define perimeter.
Total distance around a figure.
What is the perimeter of a rectangle 12 ft long and 8 ft wide?
2(12 + 8) = 40 feet.
A storage room measures 20 ft by 15 ft. How many square feet of flooring are needed?
20 × 15 = 300 sq ft.
Define volume.
Amount of three-dimensional space an object occupies.
What is the volume of a box measuring 4 ft × 3 ft × 2 ft?
4 × 3 × 2 = 24 cubic feet.
A tank contains 120 gallons and uses 15 gallons per hour. How long before empty?
120 ÷ 15 = 8 hours.
Multiplying any number by zero leaves the number unchanged. Explain.
False. Any number multiplied by zero equals zero.
Page 3
, 1000 Flashcards WorkKeys Exam
A payroll clerk must calculate 7.5% tax on $850. How much tax is withheld?
0.075 × 850 = $63.75.
What is the difference between a decimal and a fraction?
A decimal uses place value; a fraction represents part of a whole using numerator and
denominator.
Convert 3/8 to a decimal.
3 ÷ 8 = 0.375.
Convert 0.625 to a fraction in simplest form.
5/8.
A worker needs 1.25 gallons of paint per room. How much paint is needed for 8 rooms?
1.25 × 8 = 10 gallons.
Define estimate.
A reasonable approximation used when an exact value is unnecessary.
A machine produced 1,248 parts. Estimate using the nearest hundred.
1,200 parts.
Which is larger, 0.5 or 0.45? Why do some people answer incorrectly?
0.5 is larger. Some mistakenly compare 50 and 45 without understanding decimal place value.
A recipe requires 3/4 pound of material per batch. How much is needed for 12 batches?
12 × 3/4 = 9 pounds.
What mathematical operation is typically used when finding a rate per unit?
Division.
A warehouse inventory increased from 2,400 units to 3,000 units. What is the percent
increase?
(600 ÷ 2400) × 100 = 25% increase.
Page 4
