Exam 6: Whole Numbers

655 plus 2,149 plus 113 plus 84 equals ____________________.

32 divided by 4 equals ____________________.

656 divided by 8 equals ____________________.

8 * 7 = ____________________.

The number that is to be subtracted from another number is called the __________.

4 * 18 = ____________________

From a 250-foot spool of wire, an electrician uses pieces of the following lengths: 12 feet, 39 feet, 86 feet, and 27 feet. How much is left?

The National Electrical Code® requires that no point along a wall can be more than 6 feet from an electrical outlet. How many receptacles are required for a wall that is 20 feet long?

The number from which another number is to be subtracted is called the __________.

If you make electrical connections in 47 device boxes and use 3 wire nuts in each box, you will need ____________________ wire nuts.

In one week you worked 7 hours, 7 hours, 6 hours, 9 hours, and 4 hours. Your total hours for the week are ____________________.

If a manufacturer recommends one lighting fixture for every 80 square feet of ceiling area, how many light fixtures are needed for a warehouse that measures 100 feet by 320 feet? Show your work.

If three 30-inch pieces of wood are cut from an eight-foot board, how much will be left over?

If two people can install 75 square feet of siding per hour, how long will it take four people working at the same speed to side a house with walls of 16 feet by 20 feet, 15 feet by 20 feet, 20 feet by 18 feet, and 11 feet by 20 feet? Show your work.

641 minus 87 equals ____________________.

If a lighting circuit can supply 1800 watts of incandescent light, how many 120-watt light fixtures can it support?

If every 10 feet of pipe requires 3 strap hangers and each strap hanger requires 2 screws, ____________________ screws are required for 50 feet of pipe.

The sum of 43 and 51 is ____________________.

A contractor hires three plumbers to work 9 hours a day for five days and three laborers to work 7 hours for one day. The total number of hours worked is ____________________.

If you buy four items that cost $0.79, $1.23, $2.92, and $0.38 and pay with a ten-dollar bill, how much change should you receive?