计算题:(1)(-12)÷4×(-6)÷2(2) (- 5 8 )×(-4 ) 2 -0.25×(-5)×(-4 ) 3 (3
计算题:(1)(-12)÷4×(-6)÷2(2)(-58)×(-4)2-0.25×(-5)×(-4)3(3)(-112)-114+(-212)-(-334)-(-114)...
计算题:(1)(-12)÷4×(-6)÷2(2) (- 5 8 )×(-4 ) 2 -0.25×(-5)×(-4 ) 3 (3) (-1 1 2 )-1 1 4 +(-2 1 2 )-(-3 3 4 )-(-1 1 4 ) (4) (-3 ) 3 ÷2 1 4 ×(- 2 3 ) 2 +4- 2 2 ×(- 1 3 )
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郭门的春2592
推荐于2016-07-17
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(1)(-12)÷4×(-6)÷2=(-12)× ×(-6)× =9. (2) (- )×(-4 ) 2 -0.25×(-5)×(-4 ) 3 = - ×16-0.25×(-4)×(-5)×(-4 ) 2 =-10-80=-90 . (3) (-1 )-1 +(-2 )-(-3 )-(-1 ) = -1 -1 -2 +3 +1 = (-1 +1 )+(-1 -2 )+3 =0-4+3 =- .
(4) (-3 ) 3 ÷2 ×(- ) 2 +4- 2 2 ×(- ) = -27× × +4-4×(- ) = - +4+ =0 . |
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