87 x 25 x 4 x 10 x 20 x 5=8 700 000
87 x 25 x 4 x 10 x 20 x 5
= 87 x ( 25 x 4 ) x 10 x ( 20 x 5 )
= 87 x 100 x 10 x 100
= 8700000
87 x 25 x 4 x 10 x 20 x 5 = (25 x 4) x (20 x 5) x (10 x 87)
= 100 x 100 x 10 x 87
= 100000 x 87
= 8700000.
= ( 870 x 10 ) x ( 25 x 4 ) x ( 20 x 5 )
= 870 x 100 x 100
= 87000 x 100
= 8700000