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9×9+7=123456×9+7=98×9+6=1234567×9+8=987×9+5=12345678×9+9=

题目详情
9×9+7=
123456×9+7=
98×9+6=
1234567×9+8=
987×9+5=
12345678×9+9=
▼优质解答
答案和解析
9×9+7,
=81+7,
=88;

123456×9+7,
=1111104+7,
=1111111;

98×9+6,
=882+6,
=888;

1234567×9+8,
=11111103+8,
=11111111;

987×9+5,
=8883+5,
=8888;

12345678×9+9,
=111111102+9,
=111111111.