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 巧算99.9×0.9+11.1×1.9 巧算:37×1111+7777, 18×24×37巧算 9.99*37巧算 巧算：37*1111+9999*7 巧算 37×21+79×19+79×18 巧算:37×1111+7777×9肿么算 （37*12+43*12）/24巧算 37×11十分之一+777×十分之九 巧算 9999*21+3333*37巧算kuai 计算:17.48×-37+8.74×-88-174.8×1.9 19.98×37-199.8×1.9 1998×0. 20.12×37-201.2×1.9+2012×0.82 19.99*37+1999*0.82-1999.9*1.9= 巧算：2000-1997+1994-1991+1988-1985+1982-1979+...+14-11+8-5+2