Yes. You join 4 and 8 togeter to make 48.Then you do 48-9 which equals 39. Then you minus 39-1. So when you write it out it would look like this: (48-9) - 1 = 39
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you can make a square based pyramid using 4 triangles and a 1 square
4^2+3+1
38 can go into 1, 2, 19, and 38. 76 can go into 1, 2, 4, 19, 38, and 76.
(9-4-1)*6=24
106------------------------------------------------------------------------------------------------From Rafaelrz.You can make, 4P3 = 4!/(4-3)! = 24, different 3 digit numbers using 1, 2, 3 and 4.