2. OMG! Algebra is easy. First, an “expression” is just a number sentence. For example, if you wanted to buy the Wii games and you didn’t know how much these games cost you could show this “number expression” by writing 3 x _________. The blank is there because it’s what you don’t know, the cost of each game. With algebra, instead of a blank you put a letter. It could be any letter X, Z, G… Usually the letter is the first letter of the thing you talking about. So to write an algebraic expression you would write: 3 x C. 3 because you want 3 games and C because you don’t know the Cost of each game.

3. Mrs. Sweetland gives 3 bonus points for each extra-credit problem correctly completed. If b stands for the number of extra-credit problems correctly completed, which expression is equal to the total number of bonus points? a. b x 3b. b + 3 c. b ÷ 3d. b - 3 e. 3 > b It can’t be b because b+3 would not be the right score. It can’t be c because b/3 would still not be the right score. It can’t be d because b-3 would still not be the right score. It can’t be e because 3>b would still not be the right score. It can be a because bx3 would be the right score.

4. Find the value of y. x - y = y x = 10 A.32 B.16 C.4 D.5 E.2 10-32= -22 10-16= -6 10-4=6 10-5=5 10-2=8

5. You know how to find the sum of the angles of a polygon. The sum of the angles for a triangle (3 sides) is 180. The sum of the angles of a quadrilateral (4 sides) is 360. The sum of the angles of a pentagon (5 sides) is 540. If “S” is the amount of sides, which expression can be used to illustrate this way of finding the sum of the angles of any polygon. A.(S – 2) * 180 B.S + (2 + 180) C. 180 * S D. (360 x 2) 90 45 90 180 You add up the angles and the sum for any triangle is 180 +

6. 90 360 You add up the angles and the sum for any square or rectangle or 4 sided figure and the sum is 360 90 110 100 120 You add up the angles and the sum for any 5 sided figure and the sum is 540 110 100 120 540

7. 180 360 540 6-2=4x180=720 First I took 6-2 to get 4. Then I took 4x180 to get 720.

8. How much fencing is needed to go around the perimeter of this yard? 50+75=125 65+35=100

9. How much sod is needed to cover this yard? 35+65=100 50+75=125 125+100=225

10. One angle of a RIGHT triangle is 30 degrees. Which expression shows how to find the measure of the third angle? 30 90 ??? A.3* 180=A B.3 * 90 + 60=A C.(360 / 3) - 90 D.180 – 90 – 30=A 540 330 30 60

11. Calvin’s little brother jumped up and down. “Here they come!” shouted Calvin. Around the corner came the Thanksgiving Day Parade. Half of the people were on floats; 25% were in marching bands; clowns made up 1/8; TV stars made up 1/16; and there were 10 city officials, or 1/16. How many people were in the parade, and how many were in each group? Thanksgiving Parade FractionDecimalPercentWhole Number/to tal number of people Floats Marching Bands Clowns TV Stars City official s Total people ½ floats ¼ bands 1/8 clowns 1/16 TV stars 1/16 city officia ls 10 ½.550%80 ¼.2525%40 1/8.125 12.5%20 1/16.0625.0625% 10 1/16.0625.0625% 10 11100% 160

12. About how much of each hour does a radio program schedule for weather? A.1/10 B.B. 2/10 C.C. 3/10 D.D. 5/10 E.E. 10/10 How many minutes of each hour does a radio program schedule for weather?

13. Question 14 Which table of values satisfies the equation shown below? y = x + 4 A. C. B. D. 0+4=4 =y 1+4=5 2+4=6 1+4=5 2+4=6 3+4=7

14. What should be the value for x in the triangle shown? A. 70° B. 10° C. 90° D. 40° 70+50+60=180 10+50+60=120 90+60+50=200 40+60+50=150

15. Four friends are planning to buy an XBOX for another friend. The XBOX costs $126.00. How much will each friend have to contribute? Number sentence- solution-$ Remainder?: a. Report as decimal b. Ignore c. Round 4126.0030 I chose 30 because 120 / 4 = 30 4 * 30 =120 - 120.00 6.00 1 I chose 1 because 4 *1=4 - 4.00 2.00.50 I chose.50 because 4*.50=2. -2.00 0.00 + 31.50 126.00/4 31.50

16. Greatest Common Factors 6/30 1 2 3 6 I took 6 from 6/30. These are the factors for 6. 1 2 3 5 6 10 15 30 I took 30 from 6/30. These are the factors of thirty. 1*6=6 2*3=6 1*30=30 6 is the common factor for 6.