908×501-[731×1389-（547×236+842×731-495×361）]=________
答案:2 悬赏:40 手机版
解决时间 2021-01-03 14:25
- 提问者网友：温旧梦泪无声
- 2021-01-03 07:08
908×501-[731×1389-（547×236+842×731-495×361）]=________
最佳答案
- 五星知识达人网友：梦中风几里
- 2021-01-03 08:43
5448解析分析：去括号，分步使用分配律进行计算．解答：原式=908×501-731×1389+（547×236+842×731-495×361）
=908×501-731×1389+547×236+842×731-495×361
=908×501-731×（1389-842）+547×236-495×361
=908×501-731×547+547×236-495×361
=908×501-（731-236）×547-495×361
=908×501-495×547-495×361
=908×501-495×（547+361）
=908×501-495×908
=908×（501-495）
=908×6
=5448．
故本题
=908×501-731×1389+547×236+842×731-495×361
=908×501-731×（1389-842）+547×236-495×361
=908×501-731×547+547×236-495×361
=908×501-（731-236）×547-495×361
=908×501-495×547-495×361
=908×501-495×（547+361）
=908×501-495×908
=908×（501-495）
=908×6
=5448．
故本题
全部回答
- 1楼网友：毛毛
- 2021-01-03 09:34
你的回答很对
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