用简便方法计算.427-156-44 1230-299 137+149+163 &nbs...
答案:2 悬赏:50
解决时间 2021-03-22 03:14
- 提问者网友:沉默的哀伤
- 2021-03-21 23:39
用简便方法计算.427-156-44 1230-299 137+149+163 456+197.
最佳答案
- 二级知识专家网友:年轻没有失败
- 2021-03-21 23:52
(1)427-156-44
=427-(156+44)
=427-200
=227;
(2)1230-299
=1230-(300-1)
=1230-300+1
=930+1
=931;
(3)137+149+163
=137+163+149
=300+149
=449;
(4)456+197
=456+(200-3)
=456+200-3
=656-3
=653.
=427-(156+44)
=427-200
=227;
(2)1230-299
=1230-(300-1)
=1230-300+1
=930+1
=931;
(3)137+149+163
=137+163+149
=300+149
=449;
(4)456+197
=456+(200-3)
=456+200-3
=656-3
=653.
全部回答
- 1楼网友:魅世女王
- 2021-03-22 01:12
没看懂什么意思?
我要举报
如以上问答内容为低俗、色情、不良、暴力、侵权、涉及违法等信息,可以点下面链接进行举报!
大家都在看
推荐资讯