Well if you know your basic 5 times tables you should know 5x12 is 60, so if you do the question as a positive first you might have an easier time, but I believe it should be -60.
Well if you know your basic 5 times tables you should know 5x12 is 60, so if you do the question as a positive first you might have an easier time, but I believe it should be -60.