For integers

Integers are both positive & negative numbers & zero

… −3, −2, −1, 0, 1, 2, 3,…..

 Operation Closed or not Addition 3 + 5 = 8 8 is an integer Also, –1 + 0 = –1 –1 is an integer So, integers are closed under addition So, if we add any two numbers, we get an integer So, it is closed Subtraction 3 – 5 = –2 –2 is an integer Also, –1 – 0 = –1 –1 is an integer So, integers are closed under subtraction So, if we subtract any two numbers, we get an integer So, it is closed Multiplication 3 × 5 = 15 15 is an integer Also, –1 × 0 = 0 0 is an integer So, integers are closed under multiplication So, if we multiply any two numbers, we get an integer So, it is closed Division 3 ÷ 5 = 3/5 But, 3/5 is not an integer So, integers are not closed under division So, if we divide any two numbers, we do not get an integer So, it is not closed

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1. Chapter 1 Class 7 Integers
2. Concept wise
3. Properties of Integers

Properties of Integers 