Unit Rate: Scale and Pricing

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Unit Rate: Scale and Pricing is an interactive online activity for educational purposes, which aims to improve the reasoning of the rule of 3 that is so often used throughout life. In everyday life many situations arise in which to apply the rule of 3, which can be replaced by the calculation of the unit ratio (unit fraction), i.e. the price of a unit, and make calculations based on this price. Use the balance to deposit fruits, vegetables or candies, observe the unit price and make calculations with different quantities. How many units can you buy with your money? How much does a given number of units cost?