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II. Solve the following. Show your solution.
1. The sum of 23.456, 90.354 and 345.1
2. Take away 45.32 from 890.45
3. Increase 27.4578 by 5.783
4. Add 15.729 to the difference of 26.84 and 45
5.Subtract 68.501 from the sum of 21.54 and 80.27​