-31 -( -7) = -24
6 and 7/10 minus 3 and 3/5 = 31/10 or 3 and 1/10
31/9 - 7/6 = 62/18 - 21/18 = 41/18
31-(-6) We know minus and minus becomes plus 31+6 37
7 + (2 x 15) - 6 = 31
31 minus 9 is 22 31 - 9 = 22
-31
This year minus 31 years 7 months (approx).
-3
31
Zero.
31 - 17 = 14