4/.4*(4/4)=10
4/.4=10
4/4=1
10*1=10
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To achieve the number 77 with four fours, the solution is as follows: sqrt(4/.4)4 - 4 Instead of the second four being equal to four tenths, place a dot over the top to indicate it being equal to four ninths.
(4 + 4 + 4) ÷ 4 = 12 ÷ 4 = 3.
-14
The plural form of four is fours
If you divide ten into four equal parts you get 2.5 for each part. That is the definition of fourth.