Question

EXERCISE 6.3
1. Find
(a) 35 - (20)
(c) (-15)-(-18)
(e) 23-(-12)
-
(b) 72-(90)
(d) (-20)-(13)
(f) (-32)-(-40)
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Answer 1

1. 15

3. -15+18 = 3

5. 23+12 = 35.

2. 72- 90 = -18

4. -20 - 13 = - 33

6. -32 +40 = 8

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Answer 2

A) 35-(20) = 15

C) (-15)-(-18)
=-15+18
= 3

E) 23-(-12)
=23+12
=35

B) 72-(90)
=-18

D) (-20)-(13)
=-33

F) (-32)-(-40)
=-32+40
=8