6th Grade Fractions and Proportions: Problem 1

Problem: A truck is supposed to move a batch of rice sacks. The first day, it moves 60 more sacks than 1/5 of the entire batch. The second day, it moves 60 less sacks than 1/4 of the entire batch. 220 sacks are left. How many rice sacks are there, in all?

Key 1: Find the total number of units and correspondence between one unit and the number of sacks it represents

Key 2: Split total into multiple different sections

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