Question

69.28-18.28+51.72

Answer 1

= [( 69 - 18 ) . 28] +  51.72

= 51 . 28 + 51 . 72

= 51 . ( 28 + 72 )

= 51 . 100

= 5100

Answer 2

= 1932 - 18 . 28 + 51 . 72

= 1932 - 504 + 51 . 72

= 1932 - 504 + 3672

= 1428 + 3672

= 5100

Answer 3

69.28-18.28+51.72

=1932-18.28+51.72

=1932-504+51.72

=1932-504+3672

=1428+3672

=5100