0.72×3.3+0.76×9.9怎么简便计算
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0.72×3.3+0.76×9.9
=0.72×3.3+0.76×3.3×3
=0.72×3.3+2.28×3.3
=(0.72+2.28)×3.3
=3×3.3
=9.9
=0.72×3.3+0.76×3.3×3
=0.72×3.3+2.28×3.3
=(0.72+2.28)×3.3
=3×3.3
=9.9
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0.72*3.3+0.76*9.9=0.72*3.3+0.76*(3.3+3.3+3.3)
=0.72*3.3+0.76*3.3+0.76*3.3*0.76*3.3
=(0.72+0.76+0.76+0.76)*3.3
=(0.72+0.76*3)*3.3=9.9
=0.72*3.3+0.76*3.3+0.76*3.3*0.76*3.3
=(0.72+0.76+0.76+0.76)*3.3
=(0.72+0.76*3)*3.3=9.9
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0.72×3.3+0.76×9.9
=3.3×(0.72+0.76×3)
=3.3×(0.72+2.28)
=3.3×3=9.9
=3.3×(0.72+0.76×3)
=3.3×(0.72+2.28)
=3.3×3=9.9
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0.72×3.3+0.76×9.9=3.3×(0.72+0.76×3)=3.3×(0.72+2.28)=3.3×3=9.9
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