7.08×56+43×7.08+7.08脱式简便算?
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7.08×56+43×7.08+7.08
=7.08×56+43×7.08+7.08×1
=7.08×(56+43+1)
=7.08×110
=7.08×(100+10)
=7.08×100+7.08×10
=708+70.8
=778.8
=7.08×56+43×7.08+7.08×1
=7.08×(56+43+1)
=7.08×110
=7.08×(100+10)
=7.08×100+7.08×10
=708+70.8
=778.8
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