The product of two numbers is 70. One factor is expanded by 100 times, and the other factor is reduced by 10 times______ ．

According to the change law of the product, the product of two numbers is 70. If one factor is expanded by 100 times and the other factor is reduced by 10 times, the product will be expanded by 100 △ 10 = 10 times and 70 × 10 = 700

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