Toán Lớp 6: [299.(-74)+(-299).(-24)]:(-50)
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Toán Lớp 6: [299.(-74)+(-299).(-24)]:(-50)
Comments ( 2 )
$\text{[299.(-74)+(-299).(-24)]:(-50)}$
= [ 299 . ( -74 ) – 299 . (-24 ) ] : ( -50 )
= [ 299 .( -74 + 24 ) ] : ( – 50 )
=[ 299 . ( – 50 ) ] : ( – 50 )
= 299 . (- 50 ) : ( -50 )
= 299 . 1
= 299 .
[ 299 . ( -74 ) + ( -299 ) . ( -24 ) ] : ( -50 )
= [ 299 . ( -74 ) + 299 . 24 ] : ( -50 )
= 299 . [ -74 + 24 ] : ( -50 )
= 299 . ( -50 ) : ( -50 )
= 299 . 1
= 299