2. State whether the statements are true or false,
1
a)
2
3
-5
b) 3-(4-3) - (3 - ) - 1
d) -3) -
0
c)
1
3
4
1
4
4
9
a)
d)
9
11
8
-9
4
--5
1) 0-4
3. Subtract the sum of , and from the sum of 1 and 3.
4. Verify that (-(-a)) = a, for each of the following rational numbers:
1 b) 1 c) - 7
e)
f)
5. What number should be added to -5 to get
5 ?
6. The sum of two rational numbers is . If one of the number is 9, find the other.
7. If a = 3,6=-- and c- 1 check that a-
; check that a - (b-c)+(a - b)-c.
8. For each of the following, check that a - b#b-a.
a) a
and b =
b) a= 13
9. What rational number should be subtracted from 12 to get -92
7
9
64
7
13
15
and b =
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