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|title= Pair Products | |title= Pair Products | ||
|tagline= Choose four consecutive whole numbers. Multiply the first and last numbers together. Multiply the middle pair together. What do you notice? | |tagline= Choose four consecutive whole numbers. Multiply the first and last numbers together. Multiply the middle pair together. What do you notice? | ||
|image= | |image=NRICH2278.jpg | ||
|content= | |content= | ||
|strategy= | |strategy= | ||