## Primary Krypto

Grade:

Pre-K-2, 3-5, 6-8

Standards:

Math Content:

Number and Operations

The rules of Krypto are simple: Combine five
number cards using the four arithmetic operations (+, –, ×, ÷) to arrive at a
"target" number. This online version of Primary Krypto uses the numbers 1–10
only.

- Drag-and-drop the number cards onto the game board. They will snap into place on the outlined squares. From the small squares, choose which operation is to be performed.
- The three buttons are used to control the game:
**deal**- get a new set of number cards and a new target number**hint**- for the current hand, reveal one possible set of operations that yield a solution**solve**- see our solution (though not necessarily the only solution)

- Click
**deal**to generate a set of number cards and a target number. Find a solution for the puzzle. Then, click the**hint**button if you did not find our solution. Can you find a solution that uses the operations in the order supplied by the hint? - What problem-solving strategies can be used while playing Primary Krypto?