11-(6*1+4) = 1
30-4*(2+5) = 2
64:(2*4):3 = 4
11 - (6 • 1 + 4) = 1
30 - 4 • (2 + 5) = 2
64 : (2 • 4) : 2 = 4
11-(6*1+4) = 1
30-4*(2+5) = 2
64:(2*4):3 = 4
11 - (6 • 1 + 4) = 1
30 - 4 • (2 + 5) = 2
64 : (2 • 4) : 2 = 4