Question
Bryan tied some erasers into 9 bundles of 3 erasers each. After he bought another 27 erasers, he decided to tie them into bundles of 9 instead. How many bundles did he have in the end?
4 m

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Bryan tied some erasers into 9 bundles of 3 erasers each. After he bought another 27 erasers, he decided to tie them into bundles of 9 instead. How many bundles did he have in the end?