444,数字中间加符号,答案要等于400? 444=2中间埴上符号3种答案
4 4 4=400\uff0c\u53ea\u80fd\u52a0\u7b26\u53f7\uff0c\u8fd9\u9898\u600e\u4e48\u586b\uff1f404-4=400\u8fd9\u6837\u7b97\u5417
\u53ef\u4ee5\u8fd9\u6837\u7ec4\u5408\uff1a
\uff084+4\uff09\u00f74
=8\u00f74
=2\uff1b
4\u221a\uff084x4\uff09
=4\u221a16
=2\uff1b
\u53ea\u8003\u8651\u51fa\u4e86\u8fd9\u4e24\u4e2a\u3002
\u4f9b\u53c2\u8003\u3002
解题思路:四则运算规则(按顺序计算、先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行
解题过程:
(4×4+4)^2
=20×20
=400
存疑请追问,满意请采纳
4÷4x4=400%
(4X4+4)的平方
4O4-4=4O0
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绛旓細4脳4+鈭4 = 18
绛旓細444=24濉繍绠绗﹀彿濡備笅锛1銆佷箻娉曠粍鍚 鎴戜滑鍙互鍏堜娇鐢ㄤ箻娉曡繍绠楃鍙峰皢4鍜4鐩镐箻寰楀埌16锛岀劧鍚庡啀涔樹互4寰楀埌24锛4脳4脳4=24銆2銆侀櫎娉曚笌鍔犳硶缁勫悎 鎴戜滑涔熷彲浠ュ厛浣跨敤闄ゆ硶杩愮畻绗﹀彿灏4闄や互4寰楀埌1锛岀劧鍚庡啀鍔犱笂1寰楀埌2锛屾渶鍚庝箻浠4寰楀埌24锛氾紙4梅4+1锛壝4=24銆3銆佸噺娉曚笌闄ゆ硶缁勫悎 鎴戜滑杩樺彲浠ュ厛浣跨敤鍑忔硶杩愮畻绗﹀彿灏4...
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绛旓細鈭4+鈭4+鈭4 =2+2+2 =6
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绛旓細鈭4+鈭4+鈭4=2+2+2=6 鏈涢噰绾