200.2*20.01-200.1*19.9
=2.002*2001-2001*1.99
=2001*(2.002-1.99 )
=2001*0.012
=24.012
200.2*20.01-200.1*19.9
2个回答
相关问题
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(200.1+20.01+2.001+0.2001)÷0.1111计算法
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2008+200.8+20.08+2.008+199.2+19.92+1.992=
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解方程：x*(1+30%）*0.9+（200-x)*(1+20%)*0.9-200=27.7
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(2008+200.8+20.08+2.008+1992+199.2+19.92+1.992)怎么写?
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200乘19.9减199乘19.8 的简便计算
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2009＋200.9＋20.09＋2.009＋991＋99.1＋9.91＋0.991
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2009＋200.9＋20.09＋2.009＋991＋ 99.1＋9.91＋0.991＝
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20.02*37-200.2*1.9+2002*0.82 简便计算
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19.8-9.9+20.2-9.8+20.1-10.2+19.9-10.1-10+20
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20.2,20.2,20.2,20.1,20,20,19.9,19.8,19.8.