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4 + 4 - 4/4. The 4/4 simplifies to 1, so you have 4+4 = 8, then subtract 1 is 7.

Q: Can you express the number 7 using only four 4s?

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( (3x3) +3 ) /3=4

As a solution to the four fours problem (using the number four no more than four times to come up with the solution, 31 is equal to (4!+4)/4+4!

How about: 44-(4/4) = 43

In infinitely many ways. However, if you want powers of positive integers only, then you can express 64 as a power of 2, 4, 8 and of 64 itself.

4/.4 + 4/4 = 10 + 1 = 11.

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Four

( (3x3) +3 ) /3=4

As a solution to the four fours problem (using the number four no more than four times to come up with the solution, 31 is equal to (4!+4)/4+4!

How about: 44-(4/4) = 43

Only four numbers:20233032

It looks like you're asking what is the largest 4-digit number which has four 4's for digits - with a four digit number using four 4's, there is only one such number: 4444. Maybe I'm not understanding the wording of your question.

Four factorial plus the square root of four minus (four divided by four) 24 + 2 - 1 = 25

145.992 using only four significant figures is 146.0

4*6+1

21,600 using only four significant figures is still 21,600.

In infinitely many ways. However, if you want powers of positive integers only, then you can express 64 as a power of 2, 4, 8 and of 64 itself.

You have to express/convey EVERYTHING only using gestures and facial expressions