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Basic Math Decoded
 

Basic Math Decoded Example

Basic Math Decoded
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This example has been taken directly from the solution given by Basic Math Decoded to the formulated problem.
 
78439 + 9657
 
Place one number above the other, so that the ones', tens', hundreds', thousands' places, and so on, are lined up. Draw a line under the bottom number.
 
       
  78439
+  9657
       
 
Add the digits 9 and 7 (9 + 7 = 16). The sum is more than 10, regroup digits by placing the 1 above the left column and place the 6 below the line in the column being added.
 
     1
  78439
+  9657
      6
 
Add the digits 1, 3 and 5 (1 + 3 + 5 = 9) and place the answer below the line in the column being added.
 
     1
  78439
+  9657
     96
 
Add the digits 4 and 6 (4 + 6 = 10). The sum is more than 10, regroup digits by placing the 1 above the left column and place the 0 below the line in the column being added.
 
   1   
  78439
+  9657
    096
 
Add the digits 1, 8 and 9 (1 + 8 + 9 = 18). The sum is more than 10, regroup digits by placing the 1 above the left column and place the 8 below the line in the column being added.
 
  11   
  78439
+  9657
   8096
 
Add the digits 1 and 7 (1 + 7 = 8) and place the answer below the line in the column being added.
 
  1    
  78439
+  9657
  88096
 
Final answer
 
  78439
+  9657
  88096
 
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