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What are negative numbers
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Revision as of 18:20, 7 July 2016

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, 18:20, 7 July 2016

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===Part 1===

===Part 1===

#By the previous activity we have 11 apples. Now we add a few more. Let us say we add 4 more. We have 15 apples.

#By the previous activity we have 11 apples. Now we add a few more. Let us say we add 4 more. We have 15 apples.

−<~~b~~>11 + 2 = 13 ( + 2 signifies increase in apples)

+<br>11 + 2 = 13 ( + 2 signifies increase in apples)

<br>13 + 2 = 15 Write the expression. Again + signifies increase

<br>13 + 2 = 15 Write the expression. Again + signifies increase

#2. Let us say I ask the question – what should I add to 15 to make the number of apples 10? They will say take away Let us say we cannot use the word “take away”. <br>

#2. Let us say I ask the question – what should I add to 15 to make the number of apples 10? They will say take away Let us say we cannot use the word “take away”. <br>

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*When I add (-7). I get 8. For me to get 9, I have to add a number greater than (-7) and I have added (-6). Similarly (-5) is greater than (-6). So the larger negative number is actually smaller.<br>

*When I add (-7). I get 8. For me to get 9, I have to add a number greater than (-7) and I have added (-6). Similarly (-5) is greater than (-6). So the larger negative number is actually smaller.<br>

# Now we transition from numbers representing some quantities to numbers being manipulated as numbers.<br>

# Now we transition from numbers representing some quantities to numbers being manipulated as numbers.<br>

+
===Part 2===

===Part 2===

#We have seen what negative numbers are. We will see how to work with them. <br>

#We have seen what negative numbers are. We will see how to work with them. <br>