Saturday, 16 May 2015

Basic Calculation: 13

Explanation: We always multiply the difference of the digits by 9. Sign of the larger number is the sign of the result. For example, 38 - 83 = 9 × (3 - 8) = 9 × (- 5) = - 45

Here 83 is the larger number, so we take negative sign with 45, i. e., -45.

2 comments:

  1. No understood calculation 13 sir plz explain and consecutive number multiplication also post plz

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  2. No understood calculation 13 sir plz explain and consecutive number multiplication also post plz

    ReplyDelete