Sometimes you just need a little helping hand with those pesky Number Cross calculations, right? We're here to help! Simple enter all the numbers from the row or column you're having trouble with, along with the target sum, hit Go, and you'll get a list of all the possible sums. You'll also see any numbers that cannot be used to reach the target sum. As you cross out numbers in your puzzle, you can delete them from the calculator and re-calculate.
If you don't know why this calculator is useful, be sure to have a look at our Number Cross tutorial.
Need more Number Cross in your life? Sign up for our free Puzzle Weekly magazine for at least 28 puzzles in your inbox every week – we often include Number Cross.