Hi, What does N*m mean? What does N/m mean? What kWh mean? What kW/h mean? What does F=m*a mean? I read maybe all articles on web about concepts of multiplication,units,differences.But respondents only starts with some question(You know,what is dividing,but you do not know what multiplication is?),but they are not giving the clear answer. All my life,I thought that every problem could be sketched on paper,visually explained.I was trying to imagine for example F=ma on paper by making x line like mass and y line like acceleration and many others ways. For me,multiplication gives me sense only when I have some unit,that is per something and that unit is multiplied.For example: s/t*t,BUT s*t is totally something super highly transcedence paranormal for me.What is distancesecond?It attracts me to think about it like it is distance per some time.Or time per distance.But what is then s/t? What is apples times apples? Hour times hour?Why is easy to imagine square metre or cubic metre,but rest non length units are difficult to imagine.And if I do not know to imagine,How can I count them and know,what I am doing with them? Please give me relevant answer.