Mathematics for the Trades a Guided Approach, Canadian Edition, 2nd Edition Robert A.
Carman Hal M. Saunders Tom Mills
Chapters 1-11
CHAPTER 1
ARITHMETIC OF WHOLE NUMBERS
Preview 1
2. (a) 64 (b) 305 (c) 908
37 243 705
448 915 4 540
1 92 12 20 635 60
2,368 61 0 640,140
74,115
334R2 203
(d) 6)2006 (e) 37)7511
18 74
20 111
18 111
26
24
2
4. (a) 1, 2, 3, 4, 6 and 12
(b) 12 12 = 2 2 3
2 6
2 3
Exercises 1.1 Addition of Whole Numbers
A.
2. 65 4. 103 6. 124 8. 136
10. 1,003 12. 831 14. 806 16. 5,525
18. 9,302 20. 15,715 22. 47,111 24. 14,711
B.
2. 5,211 4. 6,441 6. 16,275 8. 7,655
10. 9,851 12. 141 14. 148
,C.
2. Two thousand three hundred four
4. Two hundred seven thousand six hundred thirty
6. Ten thousand seven
8. Five million fiftyfive thousand five hundred fifty
10. Six thousand seven hundred nine
12. 17,024 14. 3,002,017 16. 720,000,010
18. 4400 20. 5000 22. 226,000
D.
2. 3,280 4. $ 1,386 6. 1,480 8. 24
2,650 2,537 1,240 8
2,465 393 1,560 42
+ 2,970 + 832 1,320 16
11,365 fbm $ 5,148 + 1,070 + 21
6,670 shingles 111 litres
10. 8
14
6
27
+ 42
97 cm
E.
2. (a) $307,225 (b) $732,813 (c) $2,298,502 (d) $7,156
4. (a) Total feet of each kind (b) Total feet installed at each
11,453 ft of #12 BHD location
258 ft of #TX 3,530 ft at A3
12,715 ft of 410 AAC 8,412 ft at A4
8,792 ft of 110 ACSR 4,294 ft at B1
7,425 ft of 6B 5,482 ft at B5
5,073 ft at B6
6,073 ft at C4
7,779 ft at C5
Exercises 1.2 Subtraction of Whole Numbers
A.
2. 7 4. 8 6. 9 8. 0 10. 3 12. 8
,14. 10 16. 9 18. 6 20. 5 22. 18 24. 8
26. 5 28. 9 30. 8 32. 9 34. 7 36. 4
B.
2. 29 4. 19 6. 36 8. 29 10. 22
12. 38 14. 85 16. 254 18. 154 20. 715
22. 29 24. 5,698 26. 56,042 28. 9,614 30. 22,422
C.
2. 8,000 4. 26 cm 200 cm 6. $ 42
5,647 47 171 175
2,353 sq m 38 29 cm remain 24
27 217
32 8
170 $ 466 Total
1 Withdrawals
171 cm
Original Balance $ 3,610
466
Remaining Balance $ 3,144
8. (a) 230 mm (b) 100 mm (c) 4 in. (d) 5 in.
10. 14,260 12. Pipe A 1354 557 = 797 mm
8,420 Pipe B 1676 406 – 457 = 813 mm
5,840 lb
D.
2. Both sums are the same, (1,083,676,269) 4. $ 437,672
320,867
$ 116,805 profit
Exercises 1.3 Multiplication of Whole Numbers
A.
2. 56 4. 72 6. 87 8. 28 10. 84 12. 168
14. 423 16. 156 18. 564 20. 644 22. 1,088 24. 153
26. 308 28. 1,728 30. 7,138 32. 1,650 34. 928 36. 8,930
, B.
2. 2,006 4. 809 6. 708 8. 2,043 10. 563
125 47 58 670 107
10 030 5 663 5 664 143 010 3 941
40 12 32 36 35 40 1 225 8 56 30
200 6 38,023 41,064 1,368,810 60,241
250,750
12. 609 14. 542 16. 407 18. 514 20. 560
7 600 22 62 203
4,263 325,200 814 1 028 1 680
8 14 30 84 112 00
8,954 31,868 113,680
C.
2. 150 4. $ 859 $ 1165 $14,603 + $50,095 = $64,698 Total
14 17 43
600 6013 3495
1 50 859 4660
2,100 m $ 14603 $ 50095
6. 25 8. 12 10. 17,364
9 250 17
225 in. 0 121 548
60 173 64
2400 295,188
3000 mm
12. 2 5 6 = 60 Total shifts
738
60
44,280 pins in six weeks
D.
2. (a) 365 100 = $36,500 (not a leap year)
(b) 52 $700 = $36,400
(c) 400 + 800 + 1,200 + 1,600 + 2,000 + 2,400 + 2,800 + 3,200 + 3,600
+ 4,000 + 4,400 + 4,800 = $31,200
26
(d) 0.1(2) = $671,088.64 (d)* gives most money
4. 2,285 2,570 395 20,565 + 12,850 + 1,185 = 34,600 kgs
9 5 3
20,565 kgs 12,850 kgs 1,185 kgs