Calculated Column in Sharepoint Error

What errror message  you are   getting while adding

Yes krishna but all together its not more than 400characters. In calculated column whether we can add oly 30 column maximum to find average? Is there any limitation like that in sharepoint for calculated column?

Hi Reginold, There is a limit of 1024 characters in the formula section of calculated column. So you can take average of 15 columns in first calculated column and average of 18 columns in second calculated column. Then use third calculated column to take average of those two calculated columns. Hope this suffice your problem. Thanks, Krishna

Thanks krishna. But my issue is that i have created 33 number column i should do average for all the 33 column in the calculated column. It allow to add 30 column when adding 31st column it throws error. Is there any limitations for calculated column that it can hold only 30 column to find average?