1. 64 (80*3-86-90)
2. 55,3 (54,3*3-49,4-58,3)
3. 81/12 = 27/4 = 6.75 ((32/12+21/12+37/12)/3)
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Answers & Comments
1. 64 (80*3-86-90)
2. 55,3 (54,3*3-49,4-58,3)
3. 81/12 = 27/4 = 6.75 ((32/12+21/12+37/12)/3)