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From Karnataka Open Educational Resources
Series of Activities on Number Systems (view source)
Revision as of 09:43, 27 May 2016
, 09:43, 27 May 2016→Lesson 1 : Quantity and Numbers
*Pose this question like this – “ I added 5 apples to six apples to make it 11 apples. What should I do to a bag of 11 apples to make it have 6 apples again”. I take away 5. This is called subtraction and is the inverse process of addition.<br>
*Pose this question like this – “ I added 5 apples to six apples to make it 11 apples. What should I do to a bag of 11 apples to make it have 6 apples again”. I take away 5. This is called subtraction and is the inverse process of addition.<br>
'''''The “-” is called a mathematical operator. The subtraction is called an operation. These operations have some properties and they always hold''.'''
'''''The “-” is called a mathematical operator. The subtraction is called an operation. These operations have some properties and they always hold''.'''
[http://karnatakaeducation.org.in/KOER/en/index.php/Subtraction_worksheet#Subtraction subtraction worksheet]
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