The answer to the question
Two hundred
200
100+100
50*4
0+200
hundred + hundred
150 + 50
1000-800
500-300
300-100
9 = 90 (means 10 has been multiplied by 9)
8 = 72 ( means 9 has been multiplied with 8)
7 = 56 ( means 8 has been multiplied with 7)
6 = 42 ( means 7 has been multiplied with 6)
Then
3 = 12 ( means 4 has been multiplied with 3)
I hope that from the above deductions you have come to know the relation. I hope the answer has come to your help.