有些同学在做数学题时总是粗心大意 ,可称得上是“大错不犯 ,小错不断” .他们往往“难题会做 ,易题出错” ,常受家长和老师批评“太马虎” ,可他们自己总是不以为然 ,认为是小事一桩 .其实 ,马虎可不是小事 ,要知道它常常会惹出意想不到的大祸来 .不信请看 :1962年 ,美国肯尼? Some classmates are always careless when they are doing math problems. They can be said to be “wrong mistakes, small mistakes.” They often “difficulty will be done, and mistakes are easy to make mistakes”. They are often criticized by parents and teachers as “too sloppy”. However, they themselves are always disapproving and think that it is a trivial matter. In fact, sloppy is not a trivial matter. To know that it will often cause unexpected disasters. Do not believe, please read: In 1962, the United States Kenny?