答得好的话,数学计算题①.-2分之5的绝对值-(-3.5)+-1-2分之3的绝对值=②(-0.125)+(-0.75)+(-4分之3)+8分之1+1=③根据下列条件求a-b+c-b的值.(1)a=-18,b=-12,c=6,d=5(2)a=-3分之1,b=4分之3,c=-2分之1,d=12分之5
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![答得好的话,数学计算题①.-2分之5的绝对值-(-3.5)+-1-2分之3的绝对值=②(-0.125)+(-0.75)+(-4分之3)+8分之1+1=③根据下列条件求a-b+c-b的值.(1)a=-18,b=-12,c=6,d=5(2)a=-3分之1,b=4分之3,c=-2分之1,d=12分之5](/uploads/image/z/320038-70-8.jpg?t=%E7%AD%94%E5%BE%97%E5%A5%BD%E7%9A%84%E8%AF%9D%2C%E6%95%B0%E5%AD%A6%E8%AE%A1%E7%AE%97%E9%A2%98%E2%91%A0.-2%E5%88%86%E4%B9%8B5%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC-%28-3.5%29%2B-1-2%E5%88%86%E4%B9%8B3%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%3D%E2%91%A1%28-0.125%29%2B%28-0.75%29%2B%28-4%E5%88%86%E4%B9%8B3%29%2B8%E5%88%86%E4%B9%8B1%2B1%3D%E2%91%A2%E6%A0%B9%E6%8D%AE%E4%B8%8B%E5%88%97%E6%9D%A1%E4%BB%B6%E6%B1%82a-b%2Bc-b%E7%9A%84%E5%80%BC.%EF%BC%881%EF%BC%89a%3D-18%2Cb%3D-12%2Cc%3D6%2Cd%3D5%EF%BC%882%EF%BC%89a%3D-3%E5%88%86%E4%B9%8B1%2Cb%3D4%E5%88%86%E4%B9%8B3%2Cc%3D-2%E5%88%86%E4%B9%8B1%2Cd%3D12%E5%88%86%E4%B9%8B5)
答得好的话,数学计算题①.-2分之5的绝对值-(-3.5)+-1-2分之3的绝对值=②(-0.125)+(-0.75)+(-4分之3)+8分之1+1=③根据下列条件求a-b+c-b的值.(1)a=-18,b=-12,c=6,d=5(2)a=-3分之1,b=4分之3,c=-2分之1,d=12分之5
答得好的话,数学计算题①.-2分之5的绝对值-(-3.5)+-1-2分之3的绝对值=
②(-0.125)+(-0.75)+(-4分之3)+8分之1+1=
③根据下列条件求a-b+c-b的值.(1)a=-18,b=-12,c=6,d=5
(2)a=-3分之1,b=4分之3,c=-2分之1,d=12分之5④(4又8分之7)减(5又2分之1)加(负4又4分之1)减(3又8分之1)=
答得好的话,数学计算题①.-2分之5的绝对值-(-3.5)+-1-2分之3的绝对值=②(-0.125)+(-0.75)+(-4分之3)+8分之1+1=③根据下列条件求a-b+c-b的值.(1)a=-18,b=-12,c=6,d=5(2)a=-3分之1,b=4分之3,c=-2分之1,d=12分之5
①.-2分之5的绝对值-(-3.5)+-1-2分之3的绝对值
=|-5/2|-(-3.5)+-1-|3/2|
=5/2+7/2-1-3/2
=9/2-1
=7/2
②(-0.125)+(-0.75)+(-4分之3)+8分之1+1
=-0.125-0.75-3/4+1/8+1
=-0.125-0.75-0.75+0.125+1
=-1.5+1
=-0.5
③根据下列条件求a-b+c-b的值.
(1)a=-18,b=-12,c=6,d=5
a-b+c-b
=(-18)-(-12)+6-5
=-18+12+6-5
=-5
(2)a=-3分之1,b=4分之3,c=-2分之1,d=12分之5
a-b+c-b
=(-1/3)-(3/4)+(-1/2)-5/12
=-1/3-3/4-1/2-5/12
=-4/12-9/12-6/12-5/12
=-24/12
=-2
④(4又8分之7)减(5又2分之1)加(负4又4分之1)减(3又8分之1)
=(4+7/8)-(5+1/2)+(-4-1/4)-(3+1/8)
=4+7/8-5-1/2-4-1/4-3-1/8
=4-5-4-3+7/8-1/2-1/4-1/8
=-8+7/8-4/8-2/8-1/8
=-8