99x999+199的简便方法计算是:
99x999+199
=(100-1)x999+199
=999x100-999+199
=99900-800
=99100
这就是99x999+199的简便计算方法,计算结果等于99100。
99×999+199=(199-100)×999+199
=199×999-100×999+199
=199×(999+1)-99900
=199×1000-99900
=199000-99900
=99100
99×999+199
=(100-1)×999+(200-1)
=100×999-1×999+200-1
=99900-1000+1+200-1
=98900+200+1-1
=99100
99✘999 +199
=99*999+99+100
=99*(999+1)+100
=99*1000+100
=99100
99999 8888