3.56*2.97+2.97*6.44= 简便方法.10分钟之内要,急那6.4*5.3+6.4*37+6.4简便方法.快点

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3.56*2.97+2.97*6.44= 简便方法.10分钟之内要,急那6.4*5.3+6.4*37+6.4简便方法.快点

3.56*2.97+2.97*6.44= 简便方法.10分钟之内要,急那6.4*5.3+6.4*37+6.4简便方法.快点
3.56*2.97+2.97*6.44= 简便方法.10分钟之内要,急
那6.4*5.3+6.4*37+6.4简便方法.快点

3.56*2.97+2.97*6.44= 简便方法.10分钟之内要,急那6.4*5.3+6.4*37+6.4简便方法.快点
3.56*2.97+2.97*6.44
=(3.56+6.44)*2.97
=10*2.97
=29.7