Investigating Middle School Mathematics On-Line

1. Press the DEAL button.
2. The goal is to use all the numbers and any operations to reach the target number.
3. Drag the numbers to the larger squares.
4. Drag the operations to the smaller squares.

1. After you have finished, check your work by pressing the KRYPTO button.
2. If you have not correctly solved it, you can change your work and check it again.
3. If you cannot solve the problem or want to see another solution, press the SOLVE button.

Although there are over 30,000 different possible permutation for a single Krypto hand, there is no guarantee that a hand has a solution.
Use this java applet to test if a hand has a solution, and if so, what it is.