(-12)8; (2) 1034; (3) 7.123;
(-11)6; (2) 167; (3) 8.43;
①______; ②______; ③______; ④______;
⑤______; ⑥______; ⑦______ .
______
根据以上材料内容,回答问题:
①( )
②( )
③( )