巧算1982*37+198.2*1.9+991*125.
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巧算1982*37+198.2*1.9+991*125.巧算1982*37+198.2*1.9+991*125.巧算1982*37+198.2*1.9+991*125.原式=1982*37+1928*
巧算1982*37+198.2*1.9+991*125.
巧算1982*37+198.2*1.9+991*125.
巧算1982*37+198.2*1.9+991*125.
原式
=1982*37+1928*0.19+1982*62.81
=1982*(37+0.19+62.81)
=1982*100
=198200
1982*37+192.8*1.9+991*125.62
=1982*37+1928*0.19+1982*62.81
=1982*(37+0.19+62.81)
=1982*100
=198200
1982*37+198.2*1.9+991*125.62
=1982*(37+0.19+62.81)
=1982*100
=198200
原式=1982*37+192.8*1.9+991*125.62
=1982*37+1928*0.19+1982*62.81
=1982*(37+0.19+62.81)
=1982*100
=198200
巧算1982*37+198.2*1.9+991*125.
1982*37+198.2*1.9+199*125.62的简便计算过程
巧算1982*37+1982*19+991*125.62这是道奥数题有谁帮忙解决?谢谢
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