Algebra Worksheets - Complete Set With Answers Page 6
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72Combining Signed Numbers - 1.1, 1.2
(a) When the signs of numbers are the same or alike , add the numbers and keep the same
sign.
Examples: a. 3 + 5= + 8 b. - 2 - 12 = - 14 c. + 45 + 8 = 53 d. - 17 - 4= - 21
(b) When the signs of the numbers are different or unlike , subtract the smallest number from
the largest, and then take the sign of the largest number.
Examples: a. - 28 + 12 = - 16 b. + 9 - 45 = -36 c. 12 + 4 = 16
d. + 8 - 2 = 6
Add the following problems:
1) + 2 + 10 =
2) - 2 - 2 =
3) - 4 - 10 =
4) 2 + 5 =
5) - 15 - 13 =
6) - 2 - 10=
7) + 6 - 15 =
8) - 15 + 17 =
9) + 4 - 12 =
10) - 3 + 17 =
11) + 6 - 9 =
12) - 5 + 9 =
13) - 35 - 15 =
14) - 1 - 4 + 8 =
15) 1 + 2 + 3 =
16) - 2 - 4 - 6 =
17) - 4 - 10 =
18) + 34 + 38 =
19) - 21 + 5 =
20) + 3 - 5 =
21) + 13 - 12 =
22) - 19 + 9 =
23) + 11 - 10 =
24) - 6 + 6 =
25) + 3 + 21 =
26) + 8 - 23 =
27) - 13 - 13 =
28) + 4 - 29 =
29) - 4 + 23 =
30) - 15 + 8 =
31) - 1 + 45 =
32) - 3 + 1 =
33) 15 + 5 =
34) 23 + 2 =
35) - 9 + 12 =
36) 7 + 13 =
37) - 34 + 2 =
38) 9 + 17 + 12 =
39) - 2 - 4 - 17 =
40) 3 + 6 =
41) - 5 + 5 + 1 =
42) - 8 + 3 + 8 =
43) + 8 - 12 =
44) - 16 - 12 =
45) - 2 + 11 =
46) + 90 - 90 =
47) - 13 + 11 =
48) - 1 - 6 - 6 =
49) + 45 - 51 =
50) - 13 - 5 =
51) + 10 - 14 =
52) - 22 + 3 =
53) - 33 + 7 =
54) + 5 - 6=
55) + 2 - 11 =
56) + 45 - 45 =
57) - 30 + 20 =
58) + 16 - 15 =
59) + 2 - 2 =
60) + 40 - 10 - 30 =
4
Double Signs - 1.2
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