1000 divided by 10 = 100 x 9 = 900
900 divided by 9 = 100 x 8 = 800
800 divided by 8 = 100 X 7 = 700
700 divided by 7 = 100 x 6 = 600
600 divided by 6 = 100 x 5 = 500
500 divided by 5 = 100 x 4 = 400
400 divided by 4 = 100 x 3 = 300
300 divided by 3 = 100 x 2 = 200
200 divided by 2 = 100 x 1 = 100