【简答题】用简便方法计算。 (1)18×25×40 (2)46×13+54×13 (3)(125-50)×8 (4)72×125
【简答题】用简便方法计算:(要写计算过程.) ①25×125×8×40 ②52×66+33×52+52 ③37×99 ④45×101.
【简答题】Content words are changing all the time whereas functional words are stable/fixed, functional words enjoy a ______ frequency in use than content words.
【简答题】计算.(写出解答过程,能应简便方法的要用简便方法) (1)28× 4 7 × 3 4 (2)( 3 4 - 2 5 )×40 (3)[12×( 1 2 - 1 3 )]÷ 3 5 (4) 7 15 × 4 5 + 7 15 ÷5.
【简答题】content / notional words and functional words
【单选题】By ________, words fall into functional words and content words.