is this maths problem 要用easy还是easily

is this maths problem 要用easy还是easily This maths problem is and I can do it .A easy；easily B easil This maths problem is easy to work out.同义句This maths problem The maths problem is not easy( ) This maths problem is not easy.I can't work it out. this maths problem is （ ）that one A.not so easy as B.more ea {{..Easy的Maths problem..]] The maths problem is not easy enough for him to 是work out还是w __ __ THIS MATHS PROBLEM IS ! This maths problem is ___ that one . It is difficult () out this maths problem Is ____ easy _____ out the maths problem?