初一有理数计算 【紧急】(1)-2³-(1-0.5)*1/3*[2-(-3)²](2)(2/3-1/12-4/15)*(-60)(3)-3.5/7/8*(-8/7)*|-3/64|----------------------------------------------------------------------------------------------------
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![初一有理数计算 【紧急】(1)-2³-(1-0.5)*1/3*[2-(-3)²](2)(2/3-1/12-4/15)*(-60)(3)-3.5/7/8*(-8/7)*|-3/64|----------------------------------------------------------------------------------------------------](/uploads/image/z/2006998-70-8.jpg?t=%E5%88%9D%E4%B8%80%E6%9C%89%E7%90%86%E6%95%B0%E8%AE%A1%E7%AE%97+%E3%80%90%E7%B4%A7%E6%80%A5%E3%80%91%EF%BC%881%EF%BC%89-2%26%23179%3B-%EF%BC%881-0.5%EF%BC%89%2A1%2F3%2A%5B2-%28-3%29%26%23178%3B%5D%EF%BC%882%EF%BC%89%EF%BC%882%2F3-1%2F12-4%2F15%EF%BC%89%2A%EF%BC%88-60%EF%BC%89%EF%BC%883%EF%BC%89-3.5%2F7%2F8%2A%EF%BC%88-8%2F7%EF%BC%89%2A%7C-3%2F64%7C----------------------------------------------------------------------------------------------------)
初一有理数计算 【紧急】(1)-2³-(1-0.5)*1/3*[2-(-3)²](2)(2/3-1/12-4/15)*(-60)(3)-3.5/7/8*(-8/7)*|-3/64|----------------------------------------------------------------------------------------------------
初一有理数计算 【紧急】
(1)-2³-(1-0.5)*1/3*[2-(-3)²]
(2)(2/3-1/12-4/15)*(-60)
(3)-3.5/7/8*(-8/7)*|-3/64|
----------------------------------------------------------------------------------------------------------------------------------------(上面的和下面的一样,看上面的看费劲看下面的图片,图片觉得属实.)
初一有理数计算 【紧急】(1)-2³-(1-0.5)*1/3*[2-(-3)²](2)(2/3-1/12-4/15)*(-60)(3)-3.5/7/8*(-8/7)*|-3/64|----------------------------------------------------------------------------------------------------
(1)-2³-(1-0.5)*1/3*[2-(-3)²]
=-8-1/2*1/3*(2-9)
=-8-1/6*(-7)
=-8+7/6
=-41/6
(2)(2/3-1/12-4/15)*(-60)
=-60*(2/3-1/12-4/15)
=-60*2/3+60*1/12+60*4/15
=-40+5+16
=-19
(3)-3.5/7/8*(-8/7)*|-3/64|
=3.5*8/7*8/7*3/64
=7/2*8/7*8/7*3/64
=3/2