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Mathematics Huanggang small champion fifth grade Volume II Page 265438 +0 Question 4
This problem can be done as follows: (45 *15 * 30)/(9 * 6 * 3) =125 (pieces)

You can also do this: 45/9 means you can put five horizontally, 15/3 means you can put five vertically, and 30/6 means you can put five at a time, so 5*5*5= 125 (one).