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(简便计算)1994.5*79+0.24*790+244.9=
人气:430 ℃ 时间:2020-03-29 02:28:44
解答
1994.5*79+0.24*790+244.9
=1994.5*79+2.4*79+3.1*79
=(1994.5+2.4+3.1)*79
=2000*79
=158000
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