如题所述
4.9×101
=4.9*100+4.9*1
=490+4.9
=494.9
=4.9*100+4.9*1
=490+4.9
=494.9
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第1个回答 2018-09-19
4.9×101
=(100+1)×4.9
=100×4.9+1×4.9
=490+4.9
=494.9
=(100+1)×4.9
=100×4.9+1×4.9
=490+4.9
=494.9
第2个回答 2020-10-12
4.93X(100+1)
(4.93x100)+(1x4.93)
493十4.93
497.93
(4.93x100)+(1x4.93)
493十4.93
497.93