0.43×7.5+4.3×0.25简便
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0.43×7.5+4.3×0.25
=4.3×0.75+4.3×0.25
=4.3x(0.75+0.25)
=4.3x1
=4.3
=4.3×0.75+4.3×0.25
=4.3x(0.75+0.25)
=4.3x1
=4.3
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0.43×7.5+4.3×0.25简便
0.43×7.5+4.3×0.25
=0.43×7.5+0.43×2.5
=0.43×(7.5+2.5)
=0.43×10
=4.3
0.43×7.5+4.3×0.25
=0.43×7.5+0.43×2.5
=0.43×(7.5+2.5)
=0.43×10
=4.3
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展开全部
0.43×7.5+4.3×0.25
=4.3x(0.75+0.25)
=4.3x1
=4.3
=4.3x(0.75+0.25)
=4.3x1
=4.3
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