First off I would suggest googling khan academy subtracting. There are many wonderful videos and quizes.
Now 3605 - 4100 is -495. It is a negative number. I learned a system of lining the 3605 on top, the 4100 on the bottom and line them so that tens are lined up one under the other etc. I also learned a system of borrowing one from the ten value and when using it adding it as 10 to the units if I was asked to take a large figure from a smaller figure
0.0025
8% of 4100 = 8% * 4100 = 0.08 * 4100 = 328
4100.00 minus 40 percent = 246040% off of 4100= 4100 - (40% * 4100 )= 4100 - (0.40 * 4100 )= 4100 - 1640= 2460
4100
75% of 4100 = 3075
well if your problem is 4100-3605 them just subtract and get 495, but if your problem is 3905-4100 you go down to decimals and get -495 (thats negitive) -M♥
0.0025
8% of 4100 = 8% * 4100 = 0.08 * 4100 = 328
4100.00 minus 40 percent = 246040% off of 4100= 4100 - (40% * 4100 )= 4100 - (0.40 * 4100 )= 4100 - 1640= 2460
4100
The address of the Jamestown-Yorktown Foundation is: Po Box 3605, Williamsburg, VA 23187-3605
The Bold and the Beautiful - 1987 1-3605 was released on: USA: 31 July 2001
4100
4100
4100
It is: 310+4100 = 4410
125 of 4100 is 512500.