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=__ **Homework Assignments for Mr. Sanchez's Mathematics Class** __=

**Monday, Sep. 12, 2011**
 * Solve the following using number lines. Show all of your work.**
 * 1) **36 - 9**
 * 2) **12 + -7**
 * 3) **-7 + 10**

**Tuesday, Sep. 13, 2011**
 * Find the GCF of the following numbers by using factor trees.**
 * 1) **13 and 24**
 * 2) **50 and 75**
 * 3) **144 and 54**

**Wednesday, Sep. 14, 2011**
 * Find the GCF using prime factorization. Show all work.**
 * 1) **28 and 45**
 * 2) **20 and 50**
 * 3) **45, 60 and 160**

**Thursday, Sep 15, 2011**
 * Find the GCF and LCM of the following numbers. Show all work.**
 * 1) **8 and 14**
 * 2) **24 and 42**
 * 3) **70 and 120**
 * 4) **9, 12, and 15**

**Friday, Sep 16, 2011**
 * Use Venn Diagrams to find the GCF and LCM of:**
 * 1) **12 and 30**
 * 2) **24 and 36**
 * 3) **112 and 280**

This video shows an example of hoe to use a venn diagram to find GCF and LCM: media type="youtube" key="3S1GbIlmUPo" height="315" width="420"

Another video showing how to use prime factorization (factor trees) to find GCF and LCM: media type="youtube" key="J7K1BLaSX20" height="315" width="420"

**Monday, Sep. 19, 2011** **Find the GCF and LCM of the following numbers. Show all work.**
 * 1) **12, 15, and 35**
 * 2) **6, 36, and 60**

**Tuesday, Sep. 20, 2011**
 * Find the GCF and LCM of 3 numbers by using the stacking method.**
 * Show all work.**
 * 1) **27, 90, and 84**
 * 2) **4, 6, 8**
 * 3) **36, 90, 216**
 * This youtube video explains very well how to use stacking. I suggest you at**
 * least watch the 2nd half of the video.**

media type="youtube" key="Q5mgfdPoEmA" height="315" width="420"

**Wednesday, Sep. 21, 2011**
 * Find the GCF and LCM of the 3 numbers by stacking: **
 * 1) ** 120, 180, 300 **
 * 2) ** 12, 30, 54 **
 * Look at the video above for help.**

**For EXTRA CREDIT, solve the following problems. Show all of your work.** **You must show your actual work to receive ANY credit.**
 * Thursday, Sep. 22, 2011 **
 * Finish "Factors and Multiples Booklet" **
 * 1) ** 10 - 2 **
 * 2) ** 5 - 7 **
 * 3) ** 12 + - 7 **
 * 4) ** 8 + - 12 **
 * 5) ** 4 - 15 **
 * 6) ** 9 - 8 **
 * 7) ** 9 + - 8 **
 * 8) ** 14 - -5 **
 * 9) ** 14 + -5 **
 * 10) ** 18 - 4 **


 * This is a good video showing you how to use integer tiles to subtract integers.**

media type="youtube" key="SQ1eO5xKRow" height="315" width="420"


 * This one shows how to add a positive and a negative integer using integer tiles.**

media type="youtube" key="5exX2tlyz4g" height="315" width="420"


 * Friday, Sep. 23, 2011 **
 * Choose 3 of the following problems and answer. **
 * Answer all 5 for extra credit.**


 * 1) **5 - -8**
 * 2) **-7 - 8**
 * 3) **-9 - -2**
 * 4) **-4 - 5**
 * 5) **10 - -10**


 * Monday, Sep. 26, 2011 **
 * Solve each problem using algebra tiles. **
 * Use number lines also for extra credit.**


 * 1) **8 + -5**
 * 2) **9 - -11**
 * 3) **-4 - 8**
 * 4) **-5 + 9**

**Tuesday, Sep. 27, 2011**
 * Choose 3 problems to solve by showing the algebra tiles method, **
 * AND the number line method. You may complete ALL for extra credit points.**
 * 1) **-8 + 3**
 * 2) **-14 - 7**
 * 3) **9 - -3**
 * 4) **-5 + 7**
 * 5) **-7 - -4**


 * Wednesday, Sep. 28, 2011 **
 * Solve by changing addition into subtraction. **
 * 1) **18 - 22**
 * 2) **-13 - 40**
 * 3) **8 - -35**

**Monday, Oct. 3, 2011** **Multiply the following. Show all of your work.**
 * 1) 3 x -2
 * 2) -4 x 4
 * 3) -6 x -2
 * 4) 3 x -3


 * Tuesday, Oct. 4, 2011 **
 * Solve the following addition and subtraction problems. **
 * Show all of your work.**
 * 1) **12 + 7 + -4**
 * 2) **10 + -11 + 5 + -5**
 * 3) **38 - -17**
 * 4) **6 - 3.98**
 * 5) **7/4 - (-1/2)**
 * 6) **7 - 2.8**


 * Wednesday, Oct. 5, 2011 **
 * Solve the following addition and subtraction problems of rational numbers: **
 * 1) **7 + -1 + 12 - 7**
 * 2) **5.8 - 3.25**
 * 3) **2/3 + 5/7**
 * 4) **3/4 - 1/3**
 * 5) **3.75 - 5**

**Thursday, Oct. 6, 2011** **Find the product or quotient of each problem.**
 * 1) -5 (-10)(-25)
 * 2) 16(-4)(-8)
 * 3) -72 / 12 / 3
 * 4) -2(-14) / (-7)