How to Excel in my book, but also to be able to automatically calculate the total number of

I finished the day off, my last auto-calculated together how you! Know how to help a friend

that a simple way to pull out from top to bottom with the mouse, and then excel on the lower right corner There should be total value.If you use this every time, the formula can be used, assuming you have 10 data lines, from A2 to the A12, A13 so you can write “= SUM (A2:A12)” This Because you use the formula if you want to count the total value, the sum that is, you can use to solve the auto-sum, very easy to do, the following steps:
1 and requests you to select the line 1 Or a use the mouse to drag out the Bank or the end of;
2 selected, click the Start menu under “?” icon.
3 in the number you select the bottom will be , And the number of all.You do not know the specific requirements of
account is a separate summary with the words = SUM () function can be classified summary
If you want to use the words = SUBTOTAL () function