3()3()3()3=8用三种方法填运算符号 3〇3〇3〇3=8圆圈里填什么运算符号

3\uff08\uff093\uff08\uff093\uff08\uff093\uff1d8\u5728\u62ec\u53f7\u91cc\u586b\u4e0a\u8fd0\u7b97\u7b26\u53f7

3x3-3\u00f73=9-1=8\u6269\u5c55\u8d44\u6599\uff1a1. 4\u4e2a3\u8fd0\u7b97\u7ed3\u679c\u4e3a1\uff1a(3+3-3)\u00f73=12. 4\u4e2a3\u8fd0\u7b97\u7ed3\u679c\u4e3a2\uff1a3\u00f73+3\u00f73=2 3. 4\u4e2a3\u8fd0\u7b97\u7ed3\u679c\u4e3a3\uff1a3\u00d73-3-3=34. 4\u4e2a3\u8fd0\u7b97\u7ed3\u679c\u4e3a4\uff1a(3\u00d73+3)\u00f73=45. 4\u4e2a3\u8fd0\u7b97\u7ed3\u679c\u4e3a5\uff1a3+3-3\u00f73=5 6. 4\u4e2a3\u8fd0\u7b97\u7ed3\u679c\u4e3a6\uff1a3+3+3-3=6 7. 4\u4e2a3\u8fd0\u7b97\u7ed3\u679c\u4e3a7\uff1a3+3+3\u00f73=7
\u56db\u5219\u6df7\u5408\u8fd0\u7b97\uff1a
\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5\u3001\u9664\u6cd5\uff0c\u7edf\u79f0\u4e3a\u56db\u5219\u8fd0\u7b97\u3002
\u5176\u4e2d\uff0c\u52a0\u6cd5\u548c\u51cf\u6cd5\u53eb\u505a\u7b2c\u4e00\u7ea7\u8fd0\u7b97;\u4e58\u6cd5\u548c\u9664\u6cd5\u53eb\u505a\u7b2c\u4e8c\u7ea7\u8fd0\u7b97\u3002
\u8fd0\u7b97\u987a\u5e8f
1. \u540c\u7ea7\u8fd0\u7b97\u65f6\uff0c\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u8ba1\u7b97;
2. \u4e24\u7ea7\u8fd0\u7b97\u65f6\uff0c\u5148\u7b97\u4e58\u9664\uff0c\u540e\u7b97\u52a0\u51cf\u3002
3. \u540c\u7ea7\u8fd0\u7b97\u65f6\uff0c\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u8ba1\u7b97;
4. \u4e24\u7ea7\u8fd0\u7b97\u65f6\uff0c\u5148\u7b97\u4e58\u9664\uff0c\u540e\u7b97\u52a0\u51cf\u3002
5. \u6709\u62ec\u53f7\u65f6\uff0c\u5148\u7b97\u62ec\u53f7\u91cc\u9762\u7684\uff0c\u518d\u7b97\u62ec\u53f7\u5916\u9762\u7684;
6. \u6709\u591a\u5c42\u62ec\u53f7\u65f6\uff0c\u5148\u7b97\u5c0f\u62ec\u53f7\u91cc\u7684\uff0c\u518d\u7b97\u4e2d\u62ec\u53f7\u91cc\u9762\u7684\uff0c\uff0c\u518d\u7b97\u5927\u62ec\u53f7\u91cc\u9762\u7684\uff0c\u6700\u540e\u7b97\u62ec\u53f7\u5916\u9762\u7684\u3002
7. \u8981\u662f\u6709\u4e58\u65b9\uff0c\u6700\u5148\u7b97\u4e58\u65b9\u3002
8. \u5728\u6df7\u5408\u8fd0\u7b97\u4e2d\uff0c\u5148\u7b97\u62ec\u53f7\u5185\u7684\u6570 \uff0c\u62ec\u53f7\u4ece\u5c0f\u5230\u5927\uff0c\u5982\u6709\u4e58\u65b9\u5148\u7b97\u4e58\u65b9\uff0c\u7136\u540e\u4ece\u9ad8\u7ea7\u5230\u4f4e\u7ea7\u3002

\u3000\u30003\u30073\u30073\u30073=8\u5706\u5708\u91cc\u586b\u4ec0\u4e48\u8fd0\u7b97\u7b26\u53f7\uff1a
\u3000\u30003\u00d73-3\u00f73=9-1=8

3× 3- 3 ÷3=8

本题只有一种方法,请采纳

3×3-(3÷3)=9-1=8

3(×)3(-)3(÷)3=8

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