简便计算100.1+10.1+1.1+0.1 33.33×2.1+99.99×0.3 3.68
简便计算100.1+10.1+1.1+0.133.33×2.1+99.99×0.33.6851×18.9+368.51×0.811...
简便计算100.1+10.1+1.1+0.1
33.33×2.1+99.99×0.3
3.6851×18.9+368.51×0.811 展开
33.33×2.1+99.99×0.3
3.6851×18.9+368.51×0.811 展开
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100.1+10.1+1.1+0.1
=(100+10+1)+(0.1+0.1+0.1)
=111.3
33.33×2.1+99.99×0.3
=33.33x(2.1+0.9)
=33.33x3
=99.99
3.6851×18.9+368.51×0.811
=3.6851×(18.9+81.1)
=3.6851×100
=368.51
=(100+10+1)+(0.1+0.1+0.1)
=111.3
33.33×2.1+99.99×0.3
=33.33x(2.1+0.9)
=33.33x3
=99.99
3.6851×18.9+368.51×0.811
=3.6851×(18.9+81.1)
=3.6851×100
=368.51
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