I think of a number and ..

I think of a number. I add 11 then multiply by 6. The answer is 150. What number did I think of?

I think of a number. I add 16 then multiply by 7. The answer is 140. What number did I think of?

I think of a number. I add 17 then multiply by 8. The answer is 320. What number did I think of?

I think of a number. I add 7 then multiply by 9. The answer is 99. What number did I think of?

I think of a number. I add 25 then multiply by 5. The answer is 400. What number did I think of?

I think of a number. I add 15 then multiply by 5. The answer is 200. What number did I think of?

I think of a number. I add 12 then multiply by 9. The answer is 360. What number did I think of?

I think of a number. I multiply by 2. The answer is 650. What number did I think of?

I think of a number. I divide by 2. The answer is 85