1. 18 408 : (268 * 75 - 19 746) + 959

1. 18 408 : (268 * 75 - 19 746) + 959 = 1011;

1) $$268 * 75 = 20100$$

2) $$20100 - 19746 = 354$$

3) $$18408 : 354 = 52$$

4) $$52 + 959 = 1011$$