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WHOLE NUMBERS(POST -3)

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GOOD MORNING BOYS! Let us revise  some properties of whole numbers. These properties help us to understand numbers better and make calculations under certain operations very simple!  CLOSURE PROPERTY UNDER ADDITION AND MULTIPLICATION ADDITION AND MULTIPLICATION IS COMMUTATIVE FOR WHOLE NUMBERS- This means you can add numbers in any order, the sum (answer) will be thhe same. eg. 7+3 =10             4+3+5 =12 3+7=10                                                       You can multiply numbers in any order, the product (answer) will be the same.  eg. 4 x 5=20            5 x 4 =20 ASSOCIATIVE PROPERTY OF ADDITION AND MULTIPLICATION ID ENTITY PROPERTY                           ...
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WHOLE NUMBERS (POST-4)

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GOOD MORNING BOYS ! You have learnt about commutativity of addition and multiplication. SUBTRACTION AND DIVISION ARE NOT COMMUTATIVE - because if you change the order of numbers in subtraction and division ,you get a different answer. -  Division of a whole number by 0 is not defined. FINDING THE PRODUCT SUITABLE GROUPING Like we did in addition , we will first multiply two numbers whose product should  be a multiple of 10 and then multiply the third number to this. This makes calculations easy. For eg.  7 x 5 x 2                                     ( 5 x 2 ) x 7                           10 x 7 = 70 REMEMBER THESE ...         5 x 2 = 10          25 x 4 = 100        50 x 2 = 100       125 x 8 = 1000   ...
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WHOLE NUMBERS -POST 5

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GOOD MORNING BOYS ! Let us learn about -DISTRIBUTIVITY OF MULTIPLICATION OVER ADDITION The examples given below explain how multiplication of large numbers can be made simple- 1)                                                                             2) 3) 4)     (  123 x 61) + ( 123 + 50 ) 123 x( 61 +50 ) 123  +  111 = 234 NOW TRY AND DO THE SUMS GIVEN BELOW- 1.   8 x 43 2.  653 x 102                                     3. 124 x 1005 4. 106 x 1142 5. 235 x 14 + 235 + 5 THIS IS ALL FOR TODAY! CLICK ON THE LINK GIVEN BELOW AND LISTEN TO BROTHERS MESSAGE- https://www.youtube.co...
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