Exam 3: Shop Math

The area of a piece of metal that is 3/4 in. long by 7/8 in. wide is 5/6.

Pounds and ounces are mixed units, which can be reduced by dividing the ounces by ____.

The amount by which a part can be larger or smaller than the stated dimensions and still be acceptable is known as ____.

Almost all welding shop dimensioning uses ____.

When a formula has more than one mathematical operation, first do all addition and subtraction working from left to right.

Whole numbers are numbers used to express units in increments of ____.

When a formula has more than one mathematical operation, first ____.

To subtract 2 lb 10 oz from 4 lb 8 oz, you have to convert 1 lb to 16 oz and add that to the ____________________ oz.

The most common use of math in welding fabrication is for ____________________.

How many feet of scrap pipe you have left from a 7 ft 8 in. piece when 5 ft 5 in. is cut off?

To convert a fraction to a decimal, divide the numerator by the ____________________.

Subtract 5/8 from 7/8: ____________________.

Rounding off 15.6549 to the second decimal place, we obtain 15.66.

When dividing numbers, we often get a whole number followed by a long decimal fraction.

When adding multiple mixed numbers, add all of the inches first and then all of the feet.

A decimal fraction is a number that uses a decimal point to denote a unit that is larger than 1.

To add 1/2 and 1/16 where both denominators are different, you must first find the common denominator. In this case, it is ____.

An example of a welding fabrication decimal fraction problem would be to find the total length of two pieces of pipe when one is 5.5 ft and the other is 2.25 ft.

Decimal fractions are added and subtracted just like whole numbers as long as the decimal points are kept in a vertical line.

Fractions often cannot be added, subtracted, multiplied, or divided without first having to make some type of ____.