To 100.
It is under 50, so you round down to zero.
It is under 50, so you round down to zero.
To the nearest hundred, any number smaller than 50 is zero.
It is then 800 to the nearest hundred because 50 then becomes 100
Yes, it's just like 115 to the nearest hundred is 100. If the last two digits is less than 50 you have to round down. -15 to the nearest hundred is also 0. -95 to the nearest hundred is -100. -115 to the nearest hundred is -100. I'm not sure what -50 to the nearest hundred is, though!
It is 8400 to the nearest hundred because 19 is less than 50
It is 8400 to the nearest hundred because 10 is less than 50
Rounding to the nearest thousand, 50 rounds to zero.
39867 rounded to the nearest hundred is 39,900 because 67 is greater than 50
No because it is less than 50
0
278879 rounded to the nearest hundred - is 278900. The last two digits (79) are greater than 50 so you round up.