Answers

2014-07-26T08:47:25+08:00
Its easy how to barrow numbers by using subtraction

 500
-499
  = 1 because it is 0 0 above the 9 and 9 so you have to barrow in the 5
   so its 4 ?! Then the 0 make it 9 because the next is 0 is borrowing so 10
1 5 1
2014-07-27T15:15:40+08:00
Just cancel the left or the following, the borrower will be added to 10 and the borrowed one will decrease 1
Like;
 
   561
-   29
Then,
   55(11)
-       29   
     532
gets?


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