10.1乘以0.99简算.

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10.1乘以0.99简算.10.1乘以0.99简算.10.1乘以0.99简算.=(10+0.1)*0.99=9.9+0.099=9.999

10.1乘以0.99简算.
10.1乘以0.99简算.

10.1乘以0.99简算.
=(10+0.1)*0.99
=9.9+0.099
=9.999