Question

what is unit digit in the product (684*759*413*676)

Answer 1

684*759*413*676
for unit digit multiply only unit digits...
=> 4*9*3*6
=> 36*18
again multiply unit digit only...
=> 6*8
=> 48
unit digit = 8

therefore , 8 is the unit digit of the given product.....

Answer 2

For Finding the unit digit of the product (684*759*413*676) , simply multiply unit digits of each numbers -

i.e 
    4*9*3*6
   = 36*18
   = 648

Here the unit digit of above number is the unit digit of the product (684*759*413*676) i.e 8.

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