The right answer is C. but lets just check A. 4 hundreds 9 tens 2 ones = 400 + 90 + 2 = 492 so that's right B. 4 hundreds 92 ones = 400 + 92 = 492 so that is right also C. 49 hundreds 2 ones = 4900 + 2 = 4902 D. 49 tens 2 ones = 490 + 2 = 492 That is how we know that that C. is incorrect I hope this helps :)