题目内容

131313
979797
+
130130
970970
+
13001300
97009700
)÷
13
97
×
9797
1313
=______.
131313
979797
+
130130
970970
+
13001300
97009700
)÷
13
97
×
9797
1313

=(
13×10101
97×10101
+
130×1001
970×1001
+
1300×10001
9700×10001
)×
97
13
×
97×101
13×101

=(
13
97
+
13
97
+
13
97
)×
97
13
×
97
13

=
13
97
×3×
97
13
×
97
13

=
291
13

故答案为:
291
13
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