Add 3 and (-15) to the sum of 17 and (-5). [2 MARKS]

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Answer: 1 Mark
Sum of 17 and -5

\Rightarrow 17 + (- 5) = 17 - 5 = 12

Now, adding 3 and (-15)to 12

\Rightarrow 12 + 3 + (- 15) = 15 + (- 15)

\Rightarrow 15 - 15 = 0

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