Directions: Find the sum or difference of the following _1. (* 2) + (* 8) _2. (* 4) + (' 8) _3. (* 1) + (* 10) _4. (* 11) + (` 11) 5. 0 + (* 9) 6. (* 5) - (* 10) _7. ( 12) - (* 7) _8. (* 4) – (· 4)

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A: