45.69-32.(-45)
=45.69+32.45
=45.(69+32)
=45.101
=4545
-41(59+2)+59(41-2)
=-41.61+59.39
=-2501+2301
=-200
45 . 69 - 32 . ( -45 )
= 45 . 69 + 32 . 45
= 45 . ( 69 + 32 )
= 45 . 101
= 45 . ( 100 + 1 )
= 45 . 100 + 45
= 4500 + 45
=4545
-41 . ( 59 + 2 ) + 59 . ( 41 - 2 )
= -41 . 59 - 41 . 2 + 59 . 41 - 59 . 2
= ( -41 . 59 + 59 . 41 ) - 2 . ( 41 + 59 )
= 0 - 2 . 100
= -200