计算:(1)17-8÷(-2)+4×(-3) 2 ;(2) (-4 7 8 )-(-5 1 2 )+(-4 1 4
计算:(1)17-8÷(-2)+4×(-3)2;(2)(-478)-(-512)+(-414)-(+318);(3)(1112-76+34-1324)×(-48);(4)...
计算:(1)17-8÷(-2)+4×(-3) 2 ;(2) (-4 7 8 )-(-5 1 2 )+(-4 1 4 )-(+3 1 8 ) ;(3) ( 11 12 - 7 6 + 3 4 - 13 24 )×(-48) ;(4) |- 7 9 |÷( 2 3 - 1 5 )- 1 3 ×(-4 ) 2 .
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么么AOpw35
推荐于2016-12-01
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(1)17-8÷(-2)+4×(-3) 2 =17-(-4)+4×9 =17+4+36 =57; (2) (-4 )-(-5 )+(-4 )-(+3 ) = -4 +5 -4 -3 = (-4 -4 -3 )+5 = -12 +5 =-6 ; (3) ( - + - )×(-48) =-44-(-56)+(-36)-(-26) =-44+56-36+26 =2; (4) |- |÷( - )- ×(-4 ) 2 = ÷ - ×16 = - =- . |
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