32 - 42 . (- 16 ) + 48 . 5
= 16 . 2 - 16 . ( - 42 ) + 16 . 3 . 5
= 16( 2 + 42 + 3 . 5 )
= 16 . 59
= 944
32 - 42.(-16) + 48.5
= 8.4 - 42.(-2).8 + 8.6.5
= 8.4 + 84.8 + 30.8
= 8.(4 + 84 + 30)
= 8.118 = 944
Chúc em học tốt!!!
32 - 42 . (- 16 ) + 48 . 5
= 16 . 2 - 16 . ( - 42 ) + 16 . 3 . 5
= 16( 2 + 42 + 3 . 5 )
= 16 . 59
= 944
\(32-42\cdot\left(-16\right)+48\cdot5\)
\(=16\cdot2-\left(-42\right)\cdot16+16\cdot15\)
\(=16\cdot\left(2+42+15\right)\)
\(=16\cdot59=944\)
