30
100
The closest hundred to 29 is zero. You can think of it in terms of money. If you have 29 cents and you want to know approximately how many dollars you have, the answer is none.
how do u round the number 957
7649
29
We could have used that missing number. In general, the least whole number that will round to the nearest hundred is x50 of the previous one. 650 is the least whole number that will round to 700
749
Look at the number which is below the hundred thousands and round it up or down. If it is a number from 1 to 4 you round it down(actually it stays the same), but if the number is 5 or greater, then round it up. In this case you round it down so the answer is 500000.
100
To the nearest hundred, 400
Zero
659,900