32
-(1+4)
=27
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8
3 and 9
The four numbers that can be used in combinations or differences to make all numbers from 1 to 30 are 1, 2, 4, and 8. These numbers are powers of 2, which allows for the creation of all numbers from 1 to 30 through various combinations and differences. By using these four numbers strategically, one can generate any integer between 1 and 30.
(60 - 2*27) + 9/3 = 9
They can be: 27 times 5 = 135