Year 4-Round the numbers to nearnest 10,100,and 1000.This worksheet has an answer key.
When you are rounding a number to the nearest 1000, you are trying to find out which multiple of 1000 your number is closest to.
Look at the hundreds digit.
if it is less than 5 then round the number down by changing the hundreds, tens and ones digits to zero;
if it is 5 or more then round the number up by adding one on to the thousands digit and changing the hundreds, tens and ones digits to zero.