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Planning the cooking time for a piece of beef, calculating final cooking times and cooking a piece of beef to medium.

Making more portions of a recipe, scaling the amount of ingredients and scaling up and scaling down a recipe.

A chef calculates how many brownies she needs to sell in order to make a profit and how many will be left over to give away with coffee.

Planning a recipe, working out number of tins per portion and rounding up the ingredients to make the sauce.

Counting up the total takings from the day, counting the remaining cash after taking out the float.