Answer
1918
Work Step by Step
Ones place: Regroup. 16-8 = 8
Tens place: 6-5 = 1
Hundreds place: Regroup. 15-6 = 9
Thousands place: 2-1 = 1
From the 1 in the thousands place, 9 in the hundreds place, 1 in the tens place, and 8 in the ones place, we get 1918.