Word learning
Karel decided to learn the selected words gradually. On the first day, he learned 2 times more than the fifth; on the second day 3, times more than the first; on the third day 1, time more than the first; on the fourth day 5, times more than the third; and on the fifth day, he learned only one selected word. How many choice words did Karel learn altogether?
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arithmeticGrade of the word problem
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