The focus of this quiz is multiplication. Before taking part in the quiz make sure you have a pencil or pen and a piece of paper ready for writing down your answers - better still, print off our ...
When good mathematicians are stuck on a problem, they see if they can simplify it. In long multiplication we break the sum down into parts that we can easily answer and then add the parts together ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果