Question

Fill in the blanks.
(i) −23 − (?) = 15.
(ii) The largest negative integer is ...... .
(iii) The smallest positive integer is ...... .
(iv) (−8) + (−6) − (−3) = ...... .
(v) The predecessor of −200 is ...... .

Answer 1

(i)
Let the required number be x.
−23 − x = 15
=> −23 = 15 + x
=> 15 + x = −23
=> x = −15 −23
=> x = −38

(ii)
The largest negative integer is -1.

(iii)
The smallest positive integer is 1.

(iv)
(−8) + (−6) − (−3)
= (−8) + (−6) +3
= −8 ​−6 + 3
= −11

(v)
The predecessor of −200:
(−200 − 1)
= −201