What is the sum of all the integers between -12.1 and 3.3?
-8.8
The integers between -12.1 and 3.3 are -12 to 3.
We can add the negatives and the positives separately.
1+2+3 is 6.
1+2+3+4+5+6+7+8+9+10+11+12 is 78, so the negatives would equal -78.
-78+6 is -72.
+539 
