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From Karnataka Open Educational Resources
Series of Activities on Number Systems (view source)
Revision as of 16:36, 28 January 2013
, 16:36, 28 January 2013→Lesson 1 : The idea of negative numbers and operations on negative numbers
'''Now what happens when we multiply negative numbers?'''
'''Now what happens when we multiply negative numbers?'''
*Let us take -3 x 3
*Let us take -3 x 3. From the process of multiplication is repeated addition we can explain as take -3 once, take it the second time and third time. We have -3, -3, -3. We have -9. <br>
From the process of multiplication is repeated addition we can explain as take -3 once, take it the second time and third time. We have -3, -3, -3. We have -9.<br>
*3 x -3 . Again multiplication is the process of repeated addition. Except I am multiplying it by -3. Then I have to look at the operation as opposite. I am giving away 3 once, twice and third time. We have -9. <br>
-3 x -3. How do we do this? <br>
-3 x -3. How do we do this? <br>
Let us look at the table below.<br>
Let us look at the table below.<br>
