Using the number line, write the integer which is 5 more than −6.

Arrange the following integers in ascending order:
−15, 0, −7, 12, 3, −5, 1, −20, 25, 18

Put the appropriate signs as <, > or = in the box.
i) −7\(\boxed\ \) 8
ii) −8 \(\boxed\ \) −7
iii) −999 \(\boxed\ \) −1000
iv) −111 \(\boxed\ \) −111
v) 0 \(\boxed\ \) −200

Arrange the following integers in descending order.
i) 14, 27, 15, −14, −9, 0, 11, −17
ii) −99, −120, 65, −46, 78, 400, −600
iii) 111, −222, 333, −444, 555, −666, 7777, −888

Is there the smallest and the largest number in the set of integers? Give reason