2.6×0.7×0.8的简便计算
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2.6×0.7×0.8
=2.6×7×8÷100
=2.6×0.56
=2.6×(0.5+0.06)
=2.6×0.5+2.6×0.06
=2.6×5÷10+2.6×6÷100
=13÷10+15.6÷100
=1.3+0.156
=1.456
=2.6×7×8÷100
=2.6×0.56
=2.6×(0.5+0.06)
=2.6×0.5+2.6×0.06
=2.6×5÷10+2.6×6÷100
=13÷10+15.6÷100
=1.3+0.156
=1.456
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