



 
Shazia, Harley Shazia wrote back
Shazia, Maybe you can approach this by asking "How can there be fewer that 4 facts?" and then saying that there are 4 facts unless .... Here is a 4 fact, fact family
From the above example a fact family has three numbers, I am going to call them a, b and c and the facts are
Look at the first two equations. These would be identical is a and b were the same number, for example
How many facts are in this fact family? This makes me wonder. What if a and c were the same number, for example 5 × b = 5? Then b would have to be 1 to give
How many facts are in this fact family? What if b and c were the same number? What is a, b and c are all the same number? I hope this helps,  


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