Leon has 306 boxes to move. He can carry 9 at a time. How many trips does he need to make? |
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Student: There are 11 nines in each hundred. So there are thirty-three nines in three hundred. You can make another nine from the extra ones, so the answer is thirty-four. |
Students at the Advanced Multiplicative stage are learning to choose appropriately from a range of part-whole strategies to solve and estimate the answers to problems involving multiplication and division. These strategies require one or more of the numbers involved in a multiplication or division to be partitioned, manipulated, then recombined. |