Rounded to nearest tens is 530 means that number is between 526 - 535. 
and the number which sums up 11 between these two is 533.
Plz gv me the answer of one more question
which one
v r the smallest and largest whole numbers that round to 70 when rounded to the nearest ten wchich number r v.
plz post it
the smallest whole number is 66 and largest is 74
Given that rounding to the nearest 10 makes 530 means it is between 526 and 535.Also given sum of the digits is 11.So,the number is 533.