A-A+
314×79×35 211+533×334×45+15×34 12×45-11074×17
问题详情
参考答案
(1)314×79×35=110;
(2)211+533×3,
=211+511,
=711;
(3)34×45+15×34,
=34×(45+15),
=34×1,
=34;
(4)12×45-110,
=410-110,
=310;
(5)74×17-34×17,
=(74-34)×17,
=1×17,
=17;
(6)3950-12-13-16,
=3950-(12+13+16),
=3950-1,
=-1150;
(7)20×(14-15+12),
=20×14-20×15+20×12,
=5-4+10,
=11;
(8)24×(56-34+23),
=24×56-24×34+24×23,
=20-18+16,
=18;
(9)23×59+23×38
=23×(59+38),
=23×6772,
=67108;
(10)45-(45-512)
=45-45+512,
=512.
考点: