0.83+8.3*9.9怎样简便计算

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0.83+8.3*9.9怎样简便计算
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0.83+8.3*9.9怎样简便计算
0.83+8.3*9.9怎样简便计算

0.83+8.3*9.9怎样简便计算
0.83+8.3*9.9=8.3*(9.9+0.1)=83
0.83=8.3*0.1

0.83+8.3×9.9
=8.3×0.1+8.3×9.9……变一变,就简便
=(0.1+9.9)×8.3
=10×8.3
=83