(1)(-16-50+3又5分之2)÷(-2)(2)(-6)×8-(-2)³-(-4)²×5(3)(-2分之1)²+2分之1×(3分之2-│3分之2-2│)(4)-1-(1-0.5)×3分之1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/01 06:50:14
![(1)(-16-50+3又5分之2)÷(-2)(2)(-6)×8-(-2)³-(-4)²×5(3)(-2分之1)²+2分之1×(3分之2-│3分之2-2│)(4)-1-(1-0.5)×3分之1](/uploads/image/z/50673-57-3.jpg?t=%EF%BC%881%EF%BC%89%EF%BC%88-16-50%2B3%E5%8F%885%E5%88%86%E4%B9%8B2%EF%BC%89%C3%B7%EF%BC%88-2%EF%BC%89%EF%BC%882%EF%BC%89%EF%BC%88-6%EF%BC%89%C3%978-%28-2%29%26%23179%3B-%EF%BC%88-4%EF%BC%89%26%23178%3B%C3%975%EF%BC%883%EF%BC%89%EF%BC%88-2%E5%88%86%E4%B9%8B1%EF%BC%89%26%23178%3B%2B2%E5%88%86%E4%B9%8B1%C3%97%EF%BC%883%E5%88%86%E4%B9%8B2-%E2%94%823%E5%88%86%E4%B9%8B2-2%E2%94%82%EF%BC%89%EF%BC%884%EF%BC%89-1-%EF%BC%881-0.5%EF%BC%89%C3%973%E5%88%86%E4%B9%8B1)
(1)(-16-50+3又5分之2)÷(-2)(2)(-6)×8-(-2)³-(-4)²×5(3)(-2分之1)²+2分之1×(3分之2-│3分之2-2│)(4)-1-(1-0.5)×3分之1
(1)(-16-50+3又5分之2)÷(-2)(2)(-6)×8-(-2)³-(-4)²×5
(3)(-2分之1)²+2分之1×(3分之2-│3分之2-2│)(4)-1-(1-0.5)×3分之1
(1)(-16-50+3又5分之2)÷(-2)(2)(-6)×8-(-2)³-(-4)²×5(3)(-2分之1)²+2分之1×(3分之2-│3分之2-2│)(4)-1-(1-0.5)×3分之1
(1) (-16-50+3又5分之2)÷(-2)
=(-66+17/5)÷(-2)
=33-17/10
=313/10
=31.3
(2) (-6)×8-(-2)³-(-4)²×5
=-48+8-16×5
=-40-80
=-120
(3) (-2分之1)²+2分之1×(3分之2-│3分之2-2│)
=1/4+1/2×(2/3-2+2/3)
=1/4+1/2×(4/3-2)
=1/4+(2/3-1)
=1/4+2/3-1
=-1/12
(4) -1-(1-0.5)×3分之1
=-1-0.5×1/3
=-1-1/6
=-7/6
(1)(-16-50+3又5分之2)÷(-2)
=-62.6÷(-2)
=31.3
(2)(-6)×8-(-2)³-(-4)²×5
=-48+8-80
=-120
(3)(-2分之1)²...
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(1)(-16-50+3又5分之2)÷(-2)
=-62.6÷(-2)
=31.3
(2)(-6)×8-(-2)³-(-4)²×5
=-48+8-80
=-120
(3)(-2分之1)²+2分之1×(3分之2-│3分之2-2│)
=1/4+1/12
=1/3
(4)-1-(1-0.5)×3分之1
=-1-1/6
=-1又1/6
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