简算 2005乘以8分之3—0.375+1949+3.75乘以10.4

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简算2005乘以8分之3—0.375+1949+3.75乘以10.4简算2005乘以8分之3—0.375+1949+3.75乘以10.4简算2005乘以8分之3—0.375+1949+3.75乘以10

简算 2005乘以8分之3—0.375+1949+3.75乘以10.4
简算 2005乘以8分之3—0.375+1949+3.75乘以10.4

简算 2005乘以8分之3—0.375+1949+3.75乘以10.4
=2005*0.375-0.375+1949+0.375*104
=0.375*(2005-1+104)+1949
=0.375*2108+1949
=790.5+1949
=2739.5

有括号没

2005×3/8-0.375+1949+3.75×10.4
=2005×0.375-0.375+1949+3.75×10.4
=2004×0.375+1949+39
=751.5+1949+39
=2739.5