(2000-74*21)*(200*608-121530)= 31220
1. 74*21= 1554
2. 2000-1554=446
3. 200*608 = 121600
4. 121600-121530= 70
5. 446 * 70 = 31220
999999-10368:(1024-56*16)+18= 999 936
1. 56*16 = 896
2. 1024-896 = 128
3. 10368 : 128 = 81
4. 999 999 - 81 = 999 918
5. 999 918 + 18 = 999 936