Lesson 1: Math Basics with Whole Numbers

The absolute value of any number will always be a positive number or zero. Select one: True or False

True

Solve the following without a calculator; may result in a negative number. 55-126= a. -71 b. 71 c. 131 d. 181

a. -71

Solve the following without a calculator. 5,283 x 20 = a. 105,660 b. 106,560 c. 116,640 d. 164,760

a. 105,660

Solve the following without a calculator. 72 ÷ 6 = a. 12 b. 21 c. 66 d. 78

a. 12

This problem involves more than one type of operation. Follow the correct order of operations to solve the problem; that is, do the operations in parentheses first. ((212 - 32) x 6) ÷ 9 = a. 120 b. 126 c. 180 d. 270

a. 120

Fred is cutting 18-inch lengths of wire. How many wire lengths can he get from one length of wire 108 inches long? a. 6 b. 8 c. 9 d. 10

a. 6

A distribution job requires fifteen 50-foot poles, thirteen 45-foot poles, thirty-six 40-foot poles, and two 35-foot poles. What is the total number of poles needed? a. 66 b. 84 c. 93 d. 102

a. 66

The value of any _________ in our numbering system is determined by the position it occupies within a particular number. a. digit b. fraction c. group d. number

a. digit

Without lost time, a work year consists of 2,080 hours. At $21 per hour, what is a Qualified Electrical Worker's annual wage? a. $42,168 b. $43,680 c. $43,860 d. $58,800

b. $43,680

Solve the following without a calculator; may result in a negative number. 1 + (-4) = a. -5 b. -3 c. 3 d. 5

b. -3

Solve the following without a calculator; may result in a negative number. 56 ÷ 4 = a. -14 b. 14 c. 16 d. 42

b. 14

Solve the following without a calculator. 165 ÷ 11 = a. 14 b. 15 c. 51 d. 176

b. 15

John had a 500-foot reel of wire and used 322 feet from that reel. How many feet of wire are left on the reel? a. 168' b. 178' c. 268' d. 277'

b. 178'

A transmission job requires 4,793 suspension insulators. They are placed on order, and 2,319 arrive in the first shipment. How many are yet to arrive? a. 2,420 b. 2,474 c. 2,600 d. 2,654

b. 2,474

Solve the following without a calculator. 326 - 114 + 90 = a. 122 b. 302 c. 350 d. 416

b. 302

Bill worked on a job for 150 hours. Nancy worked on the same job for 146 hours. Tom worked 92 hours and Debby worked 34 hours, both also on the same job. How many total hours were spent on this job? a. 359 b. 422 c. 440 d. 452

b. 422

Four boxes of 2-inch-square washers containing 257, 235, 271, and 220, respectively, are in stock. The job requires a total of 1,550 washers. How many must be ordered to complete the job? a. 517 b. 567 c. 577 d. 612

b. 567

Solve the following without a calculator. 1,844 + 27 + 917 + 4,875 = a. 7,553 b. 7,663 c. 7,673 d. 7,763

b. 7,663

Whole numbers, along with the operations of addition, subtraction, multiplication, and division, form a mathematical, or numbering, system. This system is called the ________ system. a. American numbering b. decimal c. English numbering d. universal

b. decimal

On an electrical job, a contractor spent $65,243 on materials, $61,115 on labor, and $4,745 on overhead. What was the total cost of this job? a. $128,403 b. $130,905 c. $131,103 d. $131,202

c. $131,103

Solve the following without a calculator. 4,865 - 2,870 = a. 1,695 b. 1,935 c. 1,995 d. 2,005

c. 1,995

Solve the following without a calculator. 86+21= a. 65 b. 105 c. 107 d. 117

c. 107

Solve the following without a calculator; may result in a negative number. 27-16= a. -43 b. -11 c. 11 d. 43

c. 11

Solve the following without a calculator. 287x49= a. 13,622 b. 14,036 c. 14,063 d. 26,978

c. 14,063

Solve the following without a calculator. 2,564+6,643+1,544+4,111= a. 13,862 b. 14,762 c. 14,862 d. 15,962

c. 14,862

Solve the following without a calculator.64 x 33 = a. 1,212 b. 1,518 c. 2,112 d. 2,121

c. 2,112

Solve the following without a calculator. 284x9 a. 2,232 b. 2,456 c. 2,556 d. 2,564

c. 2,556

This problem involves more than one type of operation. Follow the correct order of operations to solve the problem; that is, do the operations in parentheses first .((100 x 9) ÷ 5) + 32 = a. 112 b. 148 c. 212 d. 221

c. 212

Solve the following without a calculator. 7 + (-4) = a. -11 b. -3 c. 3 d. 11

c. 3

Solve the following without a calculator. 198 + 221 - 87 = a. 313 b. 323 c. 332 d. 341

c. 332

A tower line requires three strings of insulators per tower, and nine insulators per string. How many insulators will be required for 28 towers? a. 252 b. 336 c. 756 d. 765

c. 756

This problem involves more than one type of operation. Follow the correct order of operations to solve the problem; that is, do the operations in parentheses first. ((46 - 15) x 32) + 5 = a. 718 b. 992 c. 997 d. 1957

c. 997

A ___________ number is used to represent a quantity or measurement that is less than zero. a. fractional b. mixed c. negative d. proportional

c. negative

A temperature of -15°F represents a temperature that is 15° below ____________ . a. boiling b. freezing c. zero d. zero Celsius

c. zero

Mary makes $21 per hour. Tim makes $5 less per hour than Mary. How much more would Mary make than Tim if Mary worked 35 hours and Tim worked 28 hours? a. $251 b. $265 c. $278 d. $287

d. $287

A line is 54 spans long, and each span length is 275 feet. What is the total length of the line? a. 12,375' b. 13,878' c. 14,580' d. 14,850'

d. 14,850'

Solve the following without a calculator; may result in a negative number. 7,076 ÷ 244 = a. -29 b. 16 c. 27 d. 29

d. 29

Solve the following without a calculator. 21 + 145 + 227 = a. 339 b. 372 c. 383 d. 393

d. 393

Solve the following without a calculator; may result in a negative number. 864-227= a. -637 b. 537 c. 627 d. 637

d. 637