A preschool teacher is rearranging four boxes of playing blocks so that each box contains an equal number of blocks. Currently Box 1 has 32 blocks, Box 2 has 18,
Box 3 has 41, and Box 4 has 9. Select the way he could make each box have the
same number of blocks. *

Remove 7 blocks from Box 1 and place them in Box 2.

Remove all the blocks and make four equal piles of 25, then put each pile in one of the
boxes.

Remove 21 blocks from Box 3 and place them in Box 4.

Remove 7 blocks from Box 1 and place them in Box 2, and remove 21 blocks from Box
3 and place them in Box 4.