Well, darling, if we're rounding 167, we're looking at the digit to the right of the one we care about, which is 6. Since 6 is greater than 5, we'll bump that 1 up to a 2. So, 167 rounded is 170. Easy peasy lemon squeezy!
200
170.0
170
170
170
170
170
170
170
200
The digit in the tens position is 7, so the number is rounded up to 200.