28×28-12×16-5×12/2=562
Or
276+30+56+200=562
28×28-12×16-5×12/2=562
Or
276+30+56+200=562
•
高!直接割或补成正方形再减
-万斤油-
♂
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11/20/2023 postreply
18:11:04
•
这道题出的很巧妙。题中的数字引人联想勾股定理。
-大酱风度-
♂
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11/21/2023 postreply
02:16:18
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