1.125+2.125+3.125+4.125……80.125=?
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1.125+2.125+3.125+4.125……80.125=?1.125+2.125+3.125+4.125……80.125=?1.125+2.125+3.125+4.125……80.125=?用
1.125+2.125+3.125+4.125……80.125=?
1.125+2.125+3.125+4.125……80.125=?
1.125+2.125+3.125+4.125……80.125=?
用1+80的和*80/2=3240,再用0.125*80+3240=3250
算式:(1+80)*80/2+0.125*80=3250
1.125+2.125+3.125+4.125……80.125=?
1.125+2.125+3.125+.+100.125=
1.125+2.125+3.125+.80.125等于多少?
巧算1.125+2.125+3.125+4.125+50125+...+50.125
3.125×7.4-3.125+0.36×31.25 3.125×7.4-3.125+0.36×31.25
1.125+2.125+3.125+4.125……80.125 要过程
1.125+2.125.+3.125+4.125+5.125+……+50.125=
6.3+3.125+0.875+0.7简便计算(过程)
14.5x+4.
1+2+3+4...+99999=
九年级英语问题急求解答+++++++++++++++++++++++急求解答+++++++++++++++++++++++
111+222+333+444+555+666+777+888++++++++++++++++++++++999=?
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