Explain how to use reasoning and the fact 25 × 25 = 625 to determine 24 × 24. a) Draw a picture that helps you relate 25 × 25 and 24 × 24 (your picture need not be drawn perfectly to scale). b) Then write equations that incorporate your reasoning and that also show why you can calculate the answer to 24× 24 the way you do. c) Write your equations in the following form: 24 × 24 = some expression = some expression . . . .

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