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the number cubes the Fifth grade math classes use are packed into a box. when the box is full, it has 5 rows of 4 cubes with 6 layers of cubes. Mrs. Benson sees that one layer of cubes is missing from the box. how many number cubes are in the box? (a) 96 (b) 100 (c) 90 or (d) 50

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QUEEN910
4x5=20. 20x6=120. 120-20=100 b)100
mtneer05
5 rows of 4 cubes will be 20 cubes per row. with 6 layers that will be 6x20 which is 120. minus a row of 20 would be (b) 100

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