Prof. S. Brick Math for Elem Ed I; Quiz 7 Math 201
Summer ’04 section 101
0. Print your name:
1. Use the mail-time model (as described in the book) to model (−2) ·(12). Explain.
2. Solve |x−3|= 4 for the unknown xeither algebraically or using a number line. Explain.
3. Working modulo 7 (i.e., clock arithmetic with a 7 hour clock), find any and all values
of xsuch that x·3 = 4. What division problem is this equivalent to ?