Randy has some blocks. He uses 29 blocks to build a tower. If there are 50 blocks left How many blocks did he have at the start?
Randy has some blocks. He uses 29 blocks to build a tower. 

This means that he started with at least 29 blocks. 

If there are 50 blocks left, that means that he had a total of 79 blocks. 

So, he started with 29 blocks, and he had a total of 79 blocks.