数学有理数的四则混合运算题目如下,速度,要过程,Thanks...1)-20÷5×1/4+5×(-3)/152)[1/24÷(-1又1/4)×(-5/6)÷(-3又1/6)]-0.25÷1/43)-3×[-5+(1-0.2÷3/5)÷(-2)]4)对1,2,3,4可作运算(1+2+3)×4=24,现
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![数学有理数的四则混合运算题目如下,速度,要过程,Thanks...1)-20÷5×1/4+5×(-3)/152)[1/24÷(-1又1/4)×(-5/6)÷(-3又1/6)]-0.25÷1/43)-3×[-5+(1-0.2÷3/5)÷(-2)]4)对1,2,3,4可作运算(1+2+3)×4=24,现](/uploads/image/z/15022868-68-8.jpg?t=%E6%95%B0%E5%AD%A6%E6%9C%89%E7%90%86%E6%95%B0%E7%9A%84%E5%9B%9B%E5%88%99%E6%B7%B7%E5%90%88%E8%BF%90%E7%AE%97%E9%A2%98%E7%9B%AE%E5%A6%82%E4%B8%8B%2C%E9%80%9F%E5%BA%A6%2C%E8%A6%81%E8%BF%87%E7%A8%8B%2CThanks...1%29-20%C3%B75%C3%971%2F4%2B5%C3%97%EF%BC%88-3%EF%BC%89%2F152%29%5B1%2F24%C3%B7%EF%BC%88-1%E5%8F%881%2F4%EF%BC%89%C3%97%EF%BC%88-5%2F6%EF%BC%89%C3%B7%EF%BC%88-3%E5%8F%881%2F6%EF%BC%89%5D-0.25%C3%B71%2F43%29-3%C3%97%5B-5%2B%EF%BC%881-0.2%C3%B73%2F5%EF%BC%89%C3%B7%EF%BC%88-2%EF%BC%89%5D4%EF%BC%89%E5%AF%B91%2C2%2C3%2C4%E5%8F%AF%E4%BD%9C%E8%BF%90%E7%AE%97%EF%BC%881%2B2%2B3%EF%BC%89%C3%974%3D24%2C%E7%8E%B0)
数学有理数的四则混合运算题目如下,速度,要过程,Thanks...1)-20÷5×1/4+5×(-3)/152)[1/24÷(-1又1/4)×(-5/6)÷(-3又1/6)]-0.25÷1/43)-3×[-5+(1-0.2÷3/5)÷(-2)]4)对1,2,3,4可作运算(1+2+3)×4=24,现
数学有理数的四则混合运算题目如下,速度,要过程,Thanks...
1)-20÷5×1/4+5×(-3)/15
2)[1/24÷(-1又1/4)×(-5/6)÷(-3又1/6)]-0.25÷1/4
3)-3×[-5+(1-0.2÷3/5)÷(-2)]
4)对1,2,3,4可作运算(1+2+3)×4=24,现有有理数3,4,-6,10,请运用加,减,乘,除法则写出三种不同的计算算式,使其结果为24.
(1)___________
(2)___________
(3)___________
数学有理数的四则混合运算题目如下,速度,要过程,Thanks...1)-20÷5×1/4+5×(-3)/152)[1/24÷(-1又1/4)×(-5/6)÷(-3又1/6)]-0.25÷1/43)-3×[-5+(1-0.2÷3/5)÷(-2)]4)对1,2,3,4可作运算(1+2+3)×4=24,现
1)-20÷5×1/4+5×(-3)/15
=-4×1/4-1
=-1-1
=-2
2)[1/24÷(-1又1/4)×(-5/6)÷(-3又1/6)]-0.25÷1/4
=1/24×4/5×5/6×(-6/19)-1
=-1/114-1
=-115/114
3)-3×[-5+(1-0.2÷3/5)÷(-2)]
=-3×[-5+2/3÷(-2)]
=-3×[-5-1/3]
=15+1
=16
4)对1,2,3,4可作运算(1+2+3)×4=24,现有有理数3,4,-6,10,请运用加,减,乘,除法则写出三种不同的计算算式,使其结果为24.
(1)3×[(10+4)+(-6)]=24
(2)3×(10-4)-(-6)=24
(3)10-4-3×(-6)=24