This monthâ€™s challenges all consist of manipulating numbers. Do your best to complete the task. See if you can figure out a problem solving strategy to help you (hint: try something other than guess, check and revise) Refer to your problem solving guide in your binder for a list of possible strategies. Good luck!

**Techs:**

Begin by writing four different numbers in the four circle on each of the outermost corners. Fill in the outer squares by subtracting the smaller number from the larger number on each corner. Continue working toward the center, subtracting the corners. What patterns do you see? Can you get to the middle without a difference of zero?

**Operatives:**

To solve this puzzle you need to place each of the numbers 1-8 in the circles. However, no two consecutive numbers can touch horizontally, vertically, or diagonally (for example, 4 cannot touch 3 or 5).

**Analysts:**

To solve this puzzle you need to place each number 1-11 in every circle. Each line of circles must have a sum that totals 18. The puzzle is complete when every line has a sum of 18.

**Agents:**

To solve this puzzle put each of the numbers 1-9 into the circles so that each line has a sum of 15.

**Special Ops:**

To solve this puzzle, place each of the numbers 1-9 in the circles so all four equations are true.

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