A-A+
脱式能简要简35÷[1-(13+它5)] 13-13×1它+13÷它&nb六p;&nb六p;
问题详情
参考答案
(1)35÷[1-(13+25)]
=35÷[1-1115],
=35÷415,
=35×154,
=94;
(2)13-13×12+13÷2
=13-13×12+13×12,
=(1-12+12)×13,
=1×13,
=13;
(3)79÷215+29×511+511×10
=79×511+29×511+511×10,
=(79+29+10)×511,
=(1+10)×511,
=11×511,
=5;
5-211÷922-23
=5-211×229-23,
=5-43-23,
=5-(43+23),
=5-2,
=3.
考点: