Eddie believes that if he flips a coin 650 times, it will land heads up exactly 325 times. what would you tell eddie about his prediction?

I would tell Eddie that his prediction isn't wrong, but it could be made better. It isn't likely that the coin will land heads up exactly 325 times. He could say something like "It will land heads up ABOUT 325 times" or "It will land heads up about half the time". The magic word is ABOUT.

325 x 2 is 650. Eddie thinks every other coin flip he does will land on heads, but that prediction can't be verified, therefore his prediction is incorrect.

Multiply 9 and 67. then multiply 3 with 67. lastly the answer that you got for 9x67 is to be subtracted by the answer you got for 3x67