题目

Put the following words in the correct columns. cried, answered, looked, started, thanked, carried, studied stopped, picked, needed, returned, knocked, asked, hurried, listened, watched, used, played, kicked, washed, cleaned, called, skated, liked, wanted [t]：__________________________________________ [d]：_________________________________________ [id]：________________________________________已知两个数的和与其中一个加数，求两一个加数的运算叫做 （________）；已知两个因数的积与其中一个因数求两一个因数的运算叫做（________）。