1.在-|-2|、-|-(-2)|、-(+2)、-(-1/2)、-[+(-2)],+[-(+1/2)]中,负数有几个?2.已知|a|=|b|,则a和b的关系为________________.3.计算:|1/3-1/2|+|4/1-1/3|

问题描述:

1.在-|-2|、-|-(-2)|、-(+2)、-(-1/2)、-[+(-2)],+[-(+1/2)]中,负数有几个?2.已知|a|=|b|,则a和b的关系为________________.3.计算:|1/3-1/2|+|4/1-1/3|+…+|1/10-1/9|(要有过程) 4.He wants to play in the next World Cup.(改为同义句) He ______ ________ to play in the next World Cup.

1.在-|-2|、-|-(-2)|、-(+2)、-(-1/2)、-[+(-2)],+[-(+1/2)]中,负数有4个,分别是:-|-2|、-|-(-2)|、-(+2),+[-(+1/2)] 2.已知|a|=|b|,则a和b的关系为____a=±b____________.3.计算:|1/3-1/2|+|4/1-1/3|+…+|1/10-1/9|(要有过程) =1/2-1/3+1/3-4/1+……+1/9-1/10 =1/2-1/10 =2/5 4.He wants to play in the next World Cup.(改为同义句) He _would_____ _like_______ to play in the next World Cup.