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

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

Options:

Answer: Option A
:

Steps: 1 Mark
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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