Math Hacking Tricks - Multiplication of 9, 99, 999, 99999 | Javainhand

Hello Friends,

In this Math Hacking Tricks, We have discussed the Multiplication of 9, 99, 999, 99999 Trick. In any competitive exam like SSC/BANK/RAILWAYS/UPSC Exams, Maths is a very important subject.

We are trying to share a few tricks which will help for achieving your goal. Here we are talking about calculation shot tricks and the concept. With the help of these tricks, you can solve your problems within few seconds.

Multiplication of 9, 99, 999, 99999 Trick

Remember Point in this trick 1:- Just Suppose if you find single-digit 9 Multipliers then Subtract 1 (9-1=8). Same as if you find double-digit 99 Multipliers then subtract 1 (99-1=98).

Remember Point in this trick 2:- Just suppose if you find single-digit 9 multiplicand then convert with 1. if you find double-digit multiplicand  99 then convert with 01. If you find triple-digit multiplicand  999 then convert with 001 as on etc.

( (9 =1),(99=01), (999=001), (9999 = 0001), (99999 = 00001), (999999 = 000001) )

We are taking an example for better understanding

Example 1:- 99*99 (Multiplication Method Multiplicand *Multiplier)

Solution:- 1)Subtract 1 with Multiplicand 99 (99-1)=98 

2)Place 01 with Multiplier 99=01

Answer=9801.

Example 2:-999*999(Multiplication Method Multiplicand *Multiplier )

Solution:- 1)Subtract 1 with Multiplicand 999 (999-1)=998 

2)Place 001 with Multiplier 999=001

Answer=998001.

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