<span> You can show subtraction for a problem like
32-15 by simply writing it out just like you did, horizontally: 32-15=. You can also
show subtraction for 32-15 by stacking the numbers, with the larger number on top: 32 -15 </span> Another way
to show subtraction for 32-15 is by treating it as subtracting numbers with
different signs: 32 is the same as +32-15. Or, you can switch the numbers
around: -15+32, the answer will be the same, 17.
50 is the only outlier so take 50 out of the set then add the other 9 data points and divide by 9.<span> 76 + 79 + 80 + 82 + 78 + 83 + 79 + 81 + 82 = 720 / 9 = 80</span>