数字填空小测验

1、请在算式的方框中填入适当的数字，使等式成立，并且算式中的数字关于等号左右对称。
64×25[ ]=[ ]52×46

答案为：(Fill in the blank 1 of 1 )

2、在算式8[ ][ ]2÷38=[ ]1[ ]的四个方框中填入适当的数字，使得等式成立。写出所有可能的答案。

答案一：(Fill in the blank 1 of 8 )(Fill in the blank 2 of 8 )(Fill in the blank 3 of 8 )(Fill in the blank 4 of 8 )
答案二：(Fill in the blank 5 of 8 )(Fill in the blank 6 of 8 )(Fill in the blank 7 of 8 )(Fill in the blank 8 of 8 )

3、已知ABCD×D=DCB1,其中相同字母代表相同数字，不同字母代表不同数字，那么ABCD+DCBA等于几？

答案：(Fill in the blank 1 of 1 )

4、在算式3×[ ][ ]=[ ][ ][ ]的5个空格中，分别填入0、1、2、3、4这5个数字，使算式成立。

答案：(Fill in the blank 1 of 5 )(Fill in the blank 2 of 5 )(Fill in the blank 3 of 5 )(Fill in the blank 4 of 5 )(Fill in the blank 5 of 5 )

5、将1至8这8个数字填入下面算式方框中，每个数字只能用一次，使得两个等式都成立，其中5已经填好。
[ ][ ]×[ ]=5[ ]; [ ]×[ ]=[ ][ ]

答案：(Fill in the blank 1 of 7 )(Fill in the blank 2 of 7 )(Fill in the blank 3 of 7 )(Fill in the blank 4 of 7 )(Fill in the blank 5 of 7 )(Fill in the blank 6 of 7 )(Fill in the blank 7 of 7 )

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