26÷5.2×1.3简便计算?
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26÷5.2×1.3简便计算?
26÷5.2×1.3,
=26/5.2*1.3
=260/52*1.3
=260/(26*2)*1.3
=260/26/2*1.3
=10/2*1.3
=5*1.3
=6.5
26÷5.2×1.3,
=26/5.2*1.3
=260/52*1.3
=260/(26*2)*1.3
=260/26/2*1.3
=10/2*1.3
=5*1.3
=6.5
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