Grandma 9
Grandma bought 2 kilograms of apples at a CZK per kilogram, 5 kg of potatoes at b CZK per kilogram, and one celery for 12 CZK.
She paid with three fifty-crown coins.
○ Depending on the values a and b, express in CZK the amount of change Grandma received. (The resulting expression must not contain parentheses.)
She paid with three fifty-crown coins.
○ Depending on the values a and b, express in CZK the amount of change Grandma received. (The resulting expression must not contain parentheses.)
Final Answer:
You need to know the following knowledge to solve this word math problem:
algebraUnits of physical quantitiesGrade of the word problem
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