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Adding Directed Numbers
Subtracting Directed Numbers
eg 2 - (-6) = 8
Showing posts with label subtracting. Show all posts
Showing posts with label subtracting. Show all posts
Thursday, August 5, 2010
Adding Directed Numbers
Our Maths lesson today focused on Adding and Subtracting directed numbers. An excellent clip describing both can be loncated at Brainpop
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Important: The second number tells us whether to go right (+) or left (−), and how many steps to move. (If there is no sign, we assume it is +).
Important: Two negatives makes a positive
eg 2 - (-6) = 8
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eg 2 - (-6) = 8
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