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Some of the 9 ⋄s in the expression 10 ⋄ 9 ⋄ 8 ⋄ 7 ⋄ 6 ⋄ 5 ⋄ 4 ⋄ 3 ⋄ 2 ⋄ 1 are replaced by “÷” and the
remaining ⋄s are replaced by “×”. The result is a one-digit integer. What is the smallest number of ⋄s that
must be replaced by “÷”.

 Jan 6, 2021
 #1
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10*9*8*7*6*5*4*3*2*1 turns into 10/9/8*7*6/5*4*3/2*1 so 4 *'s were replaced.

:D

 Jan 7, 2021

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