seven minus five equals two.
7 - 5 = 2.
Twelve minus seven is five
23 and a half minus seven and five eighths equals 15.875
-7 minus 5 is -12.
Five minus seven is negative two. Here's a trick: switch the numbers around and then take your answer. Give it a minus sign.
seven and five eights
negative seven, -7
-2
7
five twentyfourths
seven sixteenths
6 and 2 sevenths
+12