Grab the cards quickly

There are a bunch of cards scattered on the table, collect them into the box at the top. Cards with adjacent points can be stacked together. For example, if there is a 3 on the top of a box, you can add a 2 or 4. As long as you collect all the cards within 3 minutes, you will pass this level.
The further you get to later levels, the more difficult the game becomes and the tighter the time. Come and see how many levels you can pass.