Tables Teaser

How will you work out which numbers have been used to create this multiplication square?
Exploring and noticing Working systematically Conjecturing and generalising Visualising and representing Reasoning, convincing and proving
Being curious Being resourceful Being resilient Being collaborative

Have a look at this grid:

Image
Tables Teaser
 

Can you see how it has been made?

Why is the 60 in that particular square?

Why does 20 appear twice?

In the interactivity below, some of the grid is filled in for you.

Can you work out which number goes in each row and column heading?

Once you know what each heading must be, drag the purple numbers to the appropriate spaces. When you think you have cracked it, click "Show the solution" to see if you are right.