如题所述
10.1×78
=(10+0.1)×78
=10×78+0.1×78
=780+7.8
=787.8
=(10+0.1)×78
=10×78+0.1×78
=780+7.8
=787.8
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第1个回答 2016-12-17
10.1×78
等于(10+0.1)×78
等于10×78+0.1×78
等于780+7.8
等于787.8
第2个回答 2016-12-17
10.1×78
= (10+0.1)X78
=10X78+0.1X78
=780+7.8
=787.8
= (10+0.1)X78
=10X78+0.1X78
=780+7.8
=787.8
第3个回答 2016-12-17
101乘以两位数ab=abab 10.1*7.8=787.8