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简算:9999x77778+3333x66665.6x69.32+138.64x0.05+693.2x0.43

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简算:9999x77778+3333x6666 5.6x69.32+138.64x0.05+693.2x0.43
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答案和解析
9999x77778+3333x6666
=9999x77778+9999x2222
=9999 x(77778+2222)
=9999x80000
=799920000
5.6x69.32+138.64x0.05+693.2x0.43
=69.32x(5.6+0.1+4.3)
=69.32x10
原创答案哦!=693.2