不能简便的直接算
1/4乘2003加2005乘25%加2004乘1/4
3375除以27乘12
6.6+0.6乘20+0.6乘19
14-(四分之三+三分之四)除以八分之五
人气:388 ℃ 时间:2020-04-07 16:38:29
解答
1/4*2003+2005*25+2004*1/4
=1/4*(2003+2005+2004)
=1/4*6012
=1503
3375÷27x12
=125x12
=125x4x3
=1500
6.6+0.6x20+0.6x19
=0.6x11+0.6x20+0.6x19
=0.6x(11+20+19)
=0.6x50
=30
14-(3/4+4/3)÷5/8
=14-25/12x8/5
=14-10/3
=10 2/3
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