Math 10031 Chapter 1, Sec 1.3 Subtraction of Integers
Supplemental Problems
Evaluate:
1. 345 123
4. 1400  568
2. 56  32
3. 147  86
5. 3000 1234
Perform the indicated operations:
6. (8)  (17)
7. (6)  (13)
8. (15)  (11)
9. (34)  (67)
10. (7)  (19)
11. (128)  ( 49)
12. (12)  ( 156)
13. (34)  56
14. (16)  ( 128)
15. (94)  (58)
16. (38)  75
17. (43)  (72)
18. 360  (128)
19. (290)  (386)
20.
21. (3400)  (5150)
22. (1250)  ( 3475)
23. (290)  (458)
24. (762)  (875)
25. 1300  (780)
26. 346  (150)
27. 234.45  (134.6)
28. 17.56  23.45
29. 148.56  (347.23)
(198)  (104)
Insert the proper symbols (<, = , > ) in the blanks.
30.
16  (56) _________ 34  (12)
31.
15  (23) ______ 45  67
32. 98  (72) _______ – 58  (64)
Add or subtract the following problems:
33. 17  (33)  (18)  (29)  (10)  26
34. (34)  (90)  (15)  (65)  (74)  128
35. You enter an elevator on the third floor. The elevator goes up 4 floors, then down 6 floors, where
you exit? What floor is it?
Use the information below to find the sum of the charges. Tell if the atom is an ion.
A proton has a charge of + 1. An electron has a charge of 1 . An atom is an ion if it has a positive or
negative charge.
36. Sodium has 11 protons and 10 electrons.
37. Oxide has 8 protons and 10 electrons.
Math 10031 Chapter 1, Sec 1.3 Subtraction of Integers
Supplemental Problems
38. The day starts out at 62 º F ( Fahrenheit ) then the temperature increases 9 º F , then it increases
another 4 º F then it decreases 7 º F . What is the temperature at the end of the day?
Order the following lists of integers from least to greatest.
39. 1256 , 1670 , 1562 , 1367,  1447
40.
2998, 1546 , 2560 , 1899, 34470
Find the opposite of the following numbers.
41. The opposite of
62 is _________
42. The opposite of
45 is ___________
43. The opposite of (13) is __________
Using the words always, sometimes, or never to complete the following statements.
44. The sum of two negative integers is ____________ negative.
45. The sum of two positive integers is ______________ negative.
46. The sum of a positive integer and a negative integer is ___________ positive.
47. The difference of two negative integers is ______________ negative.
48. The difference of a positive integer and a negative integer is ___________ negative.
49. The difference of a positive integer and zero is __________ zero.
50. The sum of a negative integer and its absolute value is _________ zero.
Math 10031 Chapter 1, Sec 1.3 Subtraction of Integers
Supplemental Problems
Answers to Supplemental Problems Chapter 1, Sec 1.3
1. 222
2. 24
3. 61
4. 832
5. 1766
6. 25
7. 19
8. 4
9. 33
10. 26
11. 177
12. 168
13. 22
14. 112
15. 36
16. 37
17. 29
18. 88
19. 96
21. 8550
22. 2225
23. 168
24. 113
25. 2080
26. 496
27. 99.85
28. 41.01
29. 198.67
30. 40 > 22
31. 8 < 22
32. 26 > – 6
33. 99
34. 258
35. 1
36. 1, yes
37. 2 , yes
38. 68 º F
39.
40. 34470 , 2560 ,
20.
94
1562 ,  1447 , 1256 , 1367, 1670
1546 , 1899, 2998
41. 62
42. 45
43. 13
44. always
45. never
46.
47. sometimes
48. sometimes
sometimes
49. never
50. always