(1) The numbers. . . , 4, 3, 1, 0, 1, 2, 3, 4,. . . . etc. are integers.
(2) 1, 2, 3, 4, 5. . . . are positive integers and 1,2, 3,... are negative integers.
(3) 0 is an integer which is neither positive nor negative.
(4) On an integer number line, all numbers to the right of 0 are positive integers and all numbers to the left of 0 are negative integers.
(5) 0 is less than every positive integer and greater than every negative integer.
(6) Every positive integer is greater than every negative integer.
(7) Two integers that are at the same distance from 0, but on opposite sides of it are called opposite numbers.
(8) The greater the number, the lesser is its opposite.
(9) The sum of an integer and its opposite is zero.
(10) Rules for Adding Integers:
(16) On a number line, the number increases as we move towards right and decreases as we move towards left. Hence, the order of integers is written as…, –5, –4, – 3, – 2, – 1, 0, 1, 2, 3, 4, 5…
(17) One more than given number gives a successor and one less than given number gives predecessor.
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1. What are integers? 
2. How do you add integers with the same sign? 
3. How do you subtract integers? 
4. What is the rule for multiplying and dividing integers? 
5. How do you compare integers? 

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