简便计算9.9×6.8
9.9Ã6.8
=6.8*ï¼10-0.1ï¼
=68-0.68
=67.32
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=6.8*ï¼10-0.1ï¼
=68-0.68
=67.32
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第1个回答 2016-09-29
简便计算9.9×6.8
解:
9.9×6.8
=(10-0.1)×6.8
=10×6.8-0.1×6.8
=68-0.68
=67.32
解:
9.9×6.8
=(10-0.1)×6.8
=10×6.8-0.1×6.8
=68-0.68
=67.32
第2个回答 2016-09-29
9.9×6.8
=(10-0.1)×6.8
=10×6.8-0.1×6.8
=68-0.68
=67.32
=(10-0.1)×6.8
=10×6.8-0.1×6.8
=68-0.68
=67.32
第3个回答 2016-09-29
9.9 × 6.8
= 6.8 x ( 10 - 0.1 )
= 6.8 x 10 - 6.8 x 0.1
= 67.32
= 6.8 x ( 10 - 0.1 )
= 6.8 x 10 - 6.8 x 0.1
= 67.32
第4个回答 2016-09-29
(10-0.1)*6.8
=68-0.68
=67.32
=68-0.68
=67.32