TASK DEFINITION: The task is to generate the correct answer for a given math problem.
PROBLEM: Problem: which number can we add to 425897 to get a number exactly divisible by 456 ?

SOLUTION: 7

PROBLEM: Problem: sachin is older than rahul by 7 years . if the ratio of their ages is 11 : 9 , find the age of sachin

SOLUTION: 38.5

PROBLEM: Problem: meena wrote all the numbers from 1 to 29,999 inclusive . how many digits did she write in total ?

SOLUTION:
138,889