Answer:
3, 4, 7, 9, 10, 11, 13
Step-by-step explanation:
The answer is : 3, 4, 7, 9, 10, 11, 13
Starting from the last block, the bottom right block would be in the bottom corner of the grid, which is number 13. And above this is block number 9.
Now the section above these has 3 blocks located horizontally in a row, which are block numbers 10 and 11.
Above block 11, are two blocks, number 7 and 3. And the number 4 block is in the right of block 3.
So, we get the following blocks.
3, 4, 7, 9, 10, 11, 13