Directions: Find the sum or difference. Express your answer in lowest term f needed 1. 6. 6. 2. 8. 10 + 12 12 9. 3 10 10 5. 3. 10 10 18 8. 25 25 15 8. 5. 20 4. 20 20 30 30 9. 4 11 --- 15 15 5. 15 15 7. 9. 10.

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