简算13.68×5.7+13.6+5.3-13.67脱式计算怎么做?
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13.68×5.7+13.6+5.3-13.67
=12.68×5.7+(5.7+5.3)-(13.67-13.6)
=12.68×6-12.68×0.3+11-0.07
=76.08-3.804+11-0.07
=(76.08+11)-(3.804+0.07)
=87.08-3.874
=87.08-4+0.126
=83.08+0.126
=83.206
=12.68×5.7+(5.7+5.3)-(13.67-13.6)
=12.68×6-12.68×0.3+11-0.07
=76.08-3.804+11-0.07
=(76.08+11)-(3.804+0.07)
=87.08-3.874
=87.08-4+0.126
=83.08+0.126
=83.206
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