如题所述
444Ã78+888Ã62ç®ä¾¿è¿ç®
=444x(2x39)+888x62
=888x39+888x62
=888x(39+62)
=888x101
=888x100+888
=88800+888
=89688
=444x(2x39)+888x62
=888x39+888x62
=888x(39+62)
=888x101
=888x100+888
=88800+888
=89688
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第1个回答 2016-05-26
444×78 888×62简便运算
=444x(78+2x62)
=444x202
=444x200+444x2
=88800+888
=89688
=444x(78+2x62)
=444x202
=444x200+444x2
=88800+888
=89688