Question 1

Add the following decimal fractions: 19.399 + 51.645 + 6.52 + 5.56 =

Accepted Answer

83.124

Question 2

To add decimal fractions, place the fractions in columns, aligning the decimal points.

Accepted Answer

A) True 
 B)False  True

Question 3

Add the following decimal fractions: 0.125 + 0.25 + 1.125 =

Accepted Answer

1.5

Question 4

Add the following decimal fractions: 1.577 meters + 6.5329 meters + 10.7721 meters + 0.3776 meters =

Accepted Answer

The answer of Add the following decimal fractions: 1.577 meters...

Question 5

An technician works on 4 different jobs. The first takes 7.25 hours, the second takes 12.25 hours, the third takes 13.50 hours, and the fourth job takes 6.25 hours. How many total hours did the tecnhician work?

Accepted Answer

The answer of An technician works on 4 different jobs....

Question 6

The second place to the right of the decimal point in a decimal fraction is called the tenths place.

Accepted Answer

A) True 
 B)False

Question 7

A technician orders several items to fix a hot water heating system as follows: acid core solder at $2.62; solder paste at $0.67; a stop valve at $3.15; a 90° elbow at $0.45; and 1/2-inch copper tubing at $6.25. What is the total cost of the items ordered?

Accepted Answer

The answer of A technician orders several items to fix...

Question 8

A partially filled cylinder of refrigerant R-124 weighs 47.8 pounds. Another 15.9 pounds of R-124 are put into the cylinder. How much does the cylinder now weigh?

Accepted Answer

The answer of A partially filled cylinder of refrigerant R-124...

Question 9

Upon being started, a motor draws additional current until the motor is running. A large fan motor draws 3.39 amperes of current when running. When starting, the fan motor draws an additional 9.25 amperes of starting current. What is the total current in amperes drawn by the fan motor while starting?

Accepted Answer

The answer of Upon being started, a motor draws additional...

Question 10

Add the following decimal fractions: $1,427.66 + $532.54 + $3.29 =

Accepted Answer

The answer of Add the following decimal fractions: $1,427.66 +...

Exam 11: Addition of Decimal Fractions