Full minds and empty boxes

Two minds are better than one

Sometimes working out calculations when you are given all of the information you need can be tricky. So imagine how challenged the children of Ganges class are when they are given just part of the details and a series of 'empty boxes'. 
The empty boxes can be all types of different shapes to really make us think hard! We worked in pairs for some questions where we had to set questions for each other so you can imagine how we were wanting to make them as tricky as possible.

Can you think of any other ways these could be solved?

If you begin with the answer there are a number of different possible answers which means that we really have to apply the work we have been doing in class. Puzzling out a number of options helps to develop our ability to mentally manipulate numbers.