Practice Set 3.2
1
Write the correct symbol >, < in the box below.
Ans.
(i)
(−10)
<
6
(ii)
(−19)
<
(−5)
(iii)
(−3)
<
0
(iv)
8
<
12
(v)
5
>
0
(vi)
(−3)
>
(−9)
2
Solve.
Ans.
(i) 4 + 7 =
11
(ii) (−4) + (−5) =
−9
(iii) (−7) + 2 =
−5
(iv) 10 + (−2) =
8
(v) (−63) + (−32) =
−95
(vi) (−71) + (+71) =
0
3
Solve.
Ans.
(i) 78 − (−45) =
123
(ii) (−19) − (−27) =
8
(iii) 148 − (−37) =
185
(iv) (−120) − 200 =
−320
(v) (−57) − (−48) =
−9
(vi) (−15) − (−24) =
9
Note: For 3(i), the answer given in the
textbook is incorrect.