A-A+
下面各题怎样算简便就怎样算.①(12-27)×14②413×17+413×67③15×(9.
问题详情
①(
参考答案
①(12-27)×14
=12×14-27×14,
=7-4,
=3;
②413×17+413×67
=(17+67)×413,
=1×413,
=413;
③15×(9.6-8.6)÷1.2
=15×1÷1.2,
=15÷1.2,
=12.5;
④15-920-35
=15-920-1220,
=141120-1220,
=131920;
⑤(10×25+6)×1314
=(4+6)×1314,
=10×1314,
=657;
⑥23×[1-(13-14)]×511
=23×[1-(412-312)]×511,
=23×[1-112]×511,
=23×1112×511,
=518.
考点: