A-A+
计算下列各题 能简便的要简算:33-79-291325-1350+1512+(23-14)5
问题详情
33-
参考答案
(1)33-79-29,
=33-(79+29),
=33-1,
=32;
(2)1325-1350+15,
=1350+15,
=2350;
(3)12+(23-14),
=12+112,
=712;
(4)12+45-56,
=1310-56,
=715;
(5)58-23+38,
=(58+38)-23,
=1-23,
=13;
(6)1914-14-514+14,
=(1914-514)+(14-14),
=1-0,
=1.
考点: