孩子的数学题做对了，但老师划个圈认为错了。家长签字后，是该和老师谈还是不谈。如果谈，该怎样谈？
题目是：
Tom takes 25 minutes to shovel the driveway.
He shovelled the driveway 9 times in the month of January.
How long did he spend shovelling that month?
孩子的答案是：3 hours and 45 mins.
结果老师认为错。
题目是：
Tom takes 25 minutes to shovel the driveway.
He shovelled the driveway 9 times in the month of January.
How long did he spend shovelling that month?
孩子的答案是：3 hours and 45 mins.
结果老师认为错。
