Please click on an operation to see an example
addition   subtraction   multiplication   division
Examples: Subtract 498 from 884   Subtract 1,924,005 from 3,402,731  

Step 2

 
   
   Begin at the left to subtract.
Hunderds from the hundreds, tens from
the tens and units from the units.

Number 884 is already on the abacus (fig 1).
The first step is to subtract 4 (498) from the
hundreds, four are left now on the column
(fig 2).

fig 1   fig 2    

 


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