The sum of 36.4 and a number is 39.21, as shown below. What number should go in the box to complete the addition problem?
Numerical Answers Expected!
![The sum of 364 and a number is 3921 as shown below What number should go in the box to complete the addition problem Numerical Answers Expected class=](https://us-static.z-dn.net/files/d59/7d955cd3314429eea3c24bf7eb094d82.gif)