Siga o modelo (70×70=______)
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[tex]1 \times 1 = 1 \sqrt{1 = 1} [/tex]

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[tex]2 \times 2 = 4 \sqrt{4 = 2} [/tex]

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[tex]3 \times 3 = 9 \sqrt{9 = 3} [/tex]
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