Deck 12: Subtraction of Decimal Fractions

Question 1

Subtract the following decimal fractions: 10,141.48 - 1,834.56 __________________

Answer 1

8,306.92

Question 2

A partially filled cylinder of R-407c weighs 48.3 pounds. When the cylinder is empty, it weighs 13.6 pounds. What is the weight in pounds of the R-407c in the partially filled cylinder?

Answer 2

34.7

Question 3

Absolute pressure = Gauge pressure + Atmospheric pressure. A pressure gauge is being checked for accuracy. The gauge is connected to a tank that has an absolute pressure of 742.17 psi. Atmospheric pressure is 14.5 psi. What should the gauge read?

Answer 3

727.67 psi

Question 4

In decimal fractions the first place to the right of the decimal point is the hundredths place.

Question 5

A bill is made out for a completed repair job. The bill is broken down into parts and labor. The total of the bill is $199.42. Parts cost $68.78. What is the cost for labor?

Question 6

A bill is made out for a completed repair job. The bill is broken down into parts and labor. The total of the bill is $2,158.55. The cost for labor was $1,675.75. What is the cost for parts?

Question 7

Subtract the following decimal fractions: 874.16 sq ft - 18.25 sq ft =

Question 8

When subtracting decimal fractions, the decimal point should be aligned in the same vertical position in the answer.

Question 9

The bearing in an electric fan motor should be replaced if the rotor hits the stator. When assembled, the distance between the rotor and the stator is 0.03 inch. The bearing has had 0.00181 inch worn off. Find the distance remaining between the rotor and the stator in inches.

Question 10

Subtract the following decimal fractions: 102.75 yards - 15.18 yards =