💣 Q :64 Prep 1 Question Bank T1

Use the properties of addition in \(\mathbb{Z}\) to find the result

a) \(-6 + (-13) + 6\)

\(= -6 + 6 + (-13)\)

\(= (-6 + 6) + (-13)\)

\(= 0 + (-13) = -13\)

b) \(25 + (-8) + (-25) + 7\)

\(= \left( (25) + (-25) \right) + \left( (-8) + 7 \right)\)

\(= 0 + (-1) = -1\)

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