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Question
Using a number line, evaluate:
(+4) – (-1)
Sum
Solution
(+4) – (-1)
Mark the points (+4) and (-1) on the same number line, we see that the position of (-1) is 5 units from (+4) to its right
(+4) – (-1) = 4 + 1 = 5
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Identifying And Formulating Rules for Operations on Numbers.
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