66 we can do like this to 16+16+16=48 then 48+9=57 then 57+6=66 got it or not
The sum of three sixteens and two nines is 66. This was calculated by first finding 48 from three sixteens and 18 from two nines, and then adding those results together. Thus, 3 × 16 + 2 × 9 = 66 .
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