今天放学回家,妈妈照例问我今天的学习情况。“今天学了巧算,做题目时要看清运算符号,如果前面是减号,后面是加号,就不能把后面那两个数加起来做巧算,那是陷阱”。我把老师上课讲的一字不差地背给了妈妈听。妈妈听完后说:“那就快去做作业吧。”一会儿,我就把老师布置的数学作业做完了,拿给妈妈检查时, Go home from school today, my mother as usual asked me today’s learning situation. “Learned a trick today, do the subject to see the operation symbol, if the front is minus, followed by the plus, you can not add the back of the two numbers to do trick, it is a trap ”. I told the teacher exactly what class back to the mother to listen to. After listening to my mother said: “Then go homework. ” For a while, I put the teacher arranged the math homework done, give the mother check,