Question

21289 rounding off to ten thousand ​

Answer 1

The rule for rounding to the nearest ten thousand is to look at the last four digits. If the last four digits are 5,000 or greater, then we round our ten thousands digit up, and if it is less than 5,000, then we keep our ten thousands digit the same

Given number is  

21289

and to round it to the nearest 10,000.

Value of last four digits is 1289 which is less than 5,000. Hence the number 21289 is rounded up to 20000.

Hope it helps!