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解:
3.25×4.76-0.76
=3.25×(4+0.76)-0.76
=3.25×4+3.25×0.76-0.76
=13+2.25×0.76
=13+1.71
=14.71
3.25×4.76-0.76
=3.25×(4+0.76)-0.76
=3.25×4+3.25×0.76-0.76
=13+2.25×0.76
=13+1.71
=14.71
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3.25×4.76-0.76
=3.25x4+3.25x0.76-0.76
=13+0.76x(3.25-1)
=13+0.19x4x2.25
=13+0.19x9
=13+1.71
=14.71
=3.25x4+3.25x0.76-0.76
=13+0.76x(3.25-1)
=13+0.19x4x2.25
=13+0.19x9
=13+1.71
=14.71
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2017-09-11
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3.25X4.76-7.8=3.25X5-3.25X0.24-7.8=16.25-3.25X4X0.06-8+0.2=8.45-13X0.06=8.45-0.78=8.45-1+0.22=7.67
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=3.25*(4+0.76)-0.76
=3.25*4+3.25*0.76-0.76
=3.25*4+(3.25-1)*0.76
=13+2.25*0.76
=13+1.71
=14.71
=3.25*4+3.25*0.76-0.76
=3.25*4+(3.25-1)*0.76
=13+2.25*0.76
=13+1.71
=14.71
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