Cathy think 1,275 rounded to the nearest hunded is 1,200 because 2 is less than 5 what might be Cathy misundertanding about rounding

Cathy may not understand that you look at the neighbor of your number which is seven and anything with the number 4 or less will stay the same. Which would get you 1,200 anything 5 or more you will raise the number which means that the number 1,275 rounded to the nearest hundredth would be 1,300.

That 1,275 is rounded to the nearest hundred is 1,300 because 75 is bigger than 50 or 5