600 40 20 8=18 600 40 20 8=548 600 40 20 8=308 600 40 20 8=24028 600 40 20 8=23840

1)  600 : (40 + 20) + 8 = 600 : 60 + 8 = 10 + 8 = 18

2) 600 - 40 - 20 + 8 = 548

3) 600 : 40 * 20 + 8 = 15 * 20 + 8 = 300 + 8 = 308

4) 600 * 40 + 20 + 8 = 24000 + 20 + 8 = 24028

5) 600 * 40 - 20 * 8 = 24000 - 160 = 23840