请各位高手帮我解答有关初一有理数的乘法的数学题:
发布网友
发布时间:2022-05-04 22:11
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共4个回答
热心网友
时间:2022-06-26 09:52
-6x(1/12-1又2/3+5/24)
=(-6x1/12)-(-6x5/3)+(-6x5/24)
=(-1/2)-(-10)+5/4
=19/2+5/4
=43/4
2.005x(-3)+2.005x(-8)-(-1)x2.005
=2.005x(-3)+2.005x(-8)+1x2.005
=[-3+(-8)+1]x2.005
=-20.05
热心网友
时间:2022-06-26 09:52
2.005x(-3)+2.005x(-8)-(-1)x2.005
=2.005x(-3)+2.005x(-8)+1x2.005
=[-3+(-8)+1]x2.005
=-20.05
不知道对不对
热心网友
时间:2022-06-26 09:53
(1)-6x(1/12-1又2/3+5/24)=-1/2x+9x-5/4x=9x-7/4x
(2)2.005x(-3)+2.005x(-8)-(-1)x2.005=2.005x(-3-8+1)=2.005x(-10)=-20.05
热心网友
时间:2022-06-26 09:53
(1)=-1/2+10-5/4=8又1/4
(2) = 2.005*(-3+-8+1)=20.05