> 数学 >
计算:(
19
97
+
1919
9797
)
÷
19191919
97979797
人气:363 ℃ 时间:2020-06-17 16:21:57
解答
19
97
+
1919
9797
)÷
19191919
97979797

=
19
97
×
97979797
19191919
+
1919
9797
×
97979797
19191919

=
1010101
1010101
 +
10001
10001

=1+1,
=2.
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