1.25÷2/3×0.8.102×7.3÷5.1 简便计算
2个回答
1.25÷2/3×0.8
=1.25x0.8x3/2
=2x3/2
=3
102×7.3÷5.1
=102÷5.1x7.3
=20x7.3
=146
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