CLASS 7B MATHS

           Ashish Jaiswal           28.03.2020          Maths           7B         Trial Run Best of Luck!!

INTEGERS - Lesson 3 Good morning students. You are all very good with computers. I am sure you have checked the answers from the back of the textbook. You can ask me or check for solutions online. Textbook to be followed : NCERT Sources : Youtube Students you will be able to : Extend your knowledge of closure ,commutative and associative property to addition and subtraction of whole numbers to integers. Explanation CLOSURE PROPERTY : Closure property under addition – Integers  are closed under addition, i.e. for any two integers a and b, a + b is an integer.   Example  = Explain Closure Property under addition with integers (-8) and 2 Answer  =  Find the sum of given Integers ; (-8) + 2 = (-6) Since (-6) is also an integer we can say that Integers are closed under addition Closure property under   subtraction  – Integers  are closed under subtraction, i.e. for any two integers a and b, a – b is an integer. Example   =  Explain Clos