Stage: 2 Challenge Level: 
If the houses are evenly spaced, what do you know about the total
number of houses?
Where could house number $1$ go?
Have you thought of drawing a picture?
Where could house number $1$ go?
Have you thought of drawing a picture?
Addition & subtraction. Factors and multiples. Multiplication & division. Combinations. Working systematically. Practical Activity. Counting. Visualising. Divisibility. Interactivities.
Published June 2000,November 2009,December 2009.
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