1 1 =
90
1 1 1 1 = = 1 1
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1. 1 1 =. 6. 54 9 =. 1. 5 5 =. 1. 2 2 =. 8. 80 10 =. 1. 10 10 =. 3. 27 9 =. 2. 20 10 =. 7. 35 5 =. 4. 40 10 =. 3. 6 2 =. 4. 36 9 =. 5. 50 10 =. 6. 60 10 =. 8. 80 10 =. 9. 90 10 =. 5. 45 9 =. 2. - PowerPoint PPT Presentation