Navasesh

Navasesh is a general method of verification formulated in Vedic mathematics. This can be used to verify various mathematical operations such as Addition, Subtraction, Multiplication etc.

Navasesh means ' nine and its remainder '.
Examples :
Navasesh of 23 ---> N(23) == N(2+3) == N(5) == 5
Navasesh of 82 ---> N(82) == N(8+2) == N(10) == N(1+0) == N(1) == 1
Navasesh of 49 ---> N(49) == N(4+9) == N(13) == N(1+3) == N(4) ==4
Navasesh of 105 ---> N(105) == N(1+0+5) == N(6) == 6

Addition
We know that 23 + 82 = 105
To verify :
N(23) + N(82) = N(5) + N(1) == N(5+1) == N(6) == 6
N(105) = N(6) == 6
Hence N(23) + N(82) = N(105)

Subtraction
We Know that 82 - 49 = 33
To verify :
N(82) - N(49) = N(1) - N(4) = N(1-4) == N(-3) == N(9-3) == N(6) == 6
( Note that -3 here has been converted to 9-3 such that negative number is eliminated)
N(33) = N(3+3) == N(6) == 6
Hence N(82) - N(49) = N(33)

Multiplication
We know that 23 * 49 = 1127
To verify :
N(23) * N(49) = N(5) * N(4) ==N(5 * 4) ==N(20) = N(2) =2
N(1127) = N(1+1+2+7) = N(11) = N(2) =2
Hence N(23) * N(49) = N(1127)