1. Bellwork April 29 th – May 3 rd

2. Bellwork 4/29/13 Put eight x's into this 8-by-8 grid so that no two x's are in line with each other vertically, horizontally, or diagonally. Chess players note: You are being asked to place eight queens on a chessboard so that no queen can capture any other queen.

3. 4/29/13 Solution

4. Bellwork 4/30/13 Arrange 10 pennies as shown. Now move just 3 pennies to turn the triangle upside down. Draw a good diagram to show how you did it.

5. 4/30/13 Solution

6. Bellwork 5/1/13 Use six 9's to make a numerical expression that equals 100. You may use addition, subtraction, multiplication, division, parenthesis.

7. 5/1/13 Solutions (9 · 9) + (9 + 9) + (9/9) 99 – 9 + 9 / 9 + 9 9 + 9 / 9 + 9 x 9 + 9 (9 x 9) + 9 + 9 + 9 / 9

8. Bellwork 5/2/13 On this target, I scored exactly 80. How many arrows did I fire if I didn’t miss the target at all?

9. 5/2/13 Solutions 4 arrows 23 + 23 + 23 + 11 = 80 23 + 23 + 21 + 13 = 80 6 arrows 23 + 11 + 11 + 11 + 11 + 13 = 80

10. Bellwork 5/3/13 Carnival!!!!