For the first one go -2 back, then go 5/6th of the way to -3. For the next one, convert to a mixed fraction by dividing the numerator as many times as possible by the denominator, putting the result as the whole number off to the left, then put the remainder as the numerator and keep the same denominator.
Answer:
Based on the answers I can see, it'd be all of them.
Step-by-step explanation:
When rounding to the nearest hundred, you round down if the tens are 49 or smaller (e.g. 401 to 400). If the tens are 50 or bigger, you round up (e.g. 351 to 400). I hope that helps you.