PLUMBING MATH 1.1

WORD PROBLEMS

100

A PLUMBER BOUGHT 366’ OF PIPE FOR JOBSITE A, 1280’ OF PIPE FOR JOBSITE B, AND 230’ FOR JOBSITE C. HOW MUCH PIPE DID HE NEED TO PURCHASE IN TOTAL?

1,876

200

A PLUMBER NEEDS TO PURCHASE ANGLE STOPS FOR 6 PROJECTS. EACH SITE HAD 6 LAVATORIES, 2 URINALS, 6 FLUSHOMETER WATER CLOSETS, 1 REFRIGERATOR AND 2 KITCHEN SINKS.

HOW MANY ANGLE STOPS NEED TO BE PURCHASED?

102

300

THE SUPPLY HOUSE HAS 19,620’ OF 2” COPPER TYPE L AND 8,950’ OF 4” CAST IRON.

HOW MANY JOBS CAN IT SUPPLY IF EASCH SITE NEEDS 120’ OF 2” COPPER AND 270’ OF 4” CAST IRON?

72 SITES

400

THE SITE NEEDED TO BE GRADED TO A COMMON HALF.

THE LOWEST POINT WAS 23.84’ AND THE HIGHEST POINT WAS 39.21’ 

WHAT IS THE HALF ELEVATION? round to the nearest hundredth 

31.53’

500

THE PIPE USED ON A PROJECT ARE IMPORTED AND USE THE METRIC SYSTEM. THEY SUPPLIED 367.8 METERS OF 3/8” TUBING. HOW MANY FEET AND INCHES DOES THIS EQUAL?

1,206’ 1 73/100”

DECIMALS

100

159.7302713

WHAT PLACE IS THE 2 IN?

TEN THOUSANDTHS

200

WHAT IS SEVENTY THREE AND SIXTEEN HUNDREDTH

73.16

300

ADD

7.64, 143.223, 124.78

275.643

400

MULTIPLY

543.84, 26.9

ROUND TO THE NEAREST HUNDREDTH

14,629.3

500

87.641

——————-

12,639.347 

ROUND TO THE NEAREST HUNDREDTH

144.22

ADDITION

100

654, 85, 726, 992

2,547

200

14,792,   26,344,   78,397,   45

119,578

300

34.87,   555.954,   3,713.56,   92.791

4,397.175

400

45 1/6”,   67 4/8”,   5 3/8”

118 1/24”

500

23.73‘  49 3/8”,    31.8’

KEEP IN FEET AND INCHES

59’ 7 3/4”

MULTIPLICATION

100

8X57

456

200

79X391

30,889

300

81X4X604

195,696

400

6.7X12.76

85.492

500

56.92X4.89X472

131,375.914

DIVISION

100

181

————

7,997

ROUND TO THE NEAREST HUNDREDTH

44.18

200

6

—-

519.4

ROUND TO THE NEAREST HUNDREDTH

86.57

300

8/24

——-

3/16

1 7/9

400

88/142

————

76/214

1  1005/1349

500

18

—

9

2