Grandma 9
Grandma bought 2 kilograms of apples at a crowns per kilogram, 5 kg of potatoes at b crowns per kilogram, and one celery for 12 crowns.
She paid with three fifty crowns.
o Depending on the quantities a, b, express the amount in crowns that was returned to Grandma for the purchase. (The resulting expression must not contain parentheses. )
She paid with three fifty crowns.
o Depending on the quantities a, b, express the amount in crowns that was returned to Grandma for the purchase. (The resulting expression must not contain parentheses. )
Correct 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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