1. COLEGIO SAN PATRICIO
Math Practice for 4th Period Exam
School Year 2009 – 2010
Name _____________________________________Teacher____________________________
Date___________________________________________List No.__________7th_____________
I.- Simplify the expression:
1) 24 – 6x + 42 = ________ 2) 12x + (6 – x) 4=__________ 3) -9x(6x +18)=__________
4) (4x-5)(6) +x=________ 5) -4(x – 3)=__________ 6)3x + 2x² - 9 + x + 7 = ______________
II.- Solve the equation:
7) 60x = 30x + 60 8) 25b = 135 + 15 9) -3 + n = 0 10) y - 80 = 80 11) x = 4 + 5
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11) 6x + 4 = 2x + 16 12) 3y – 7 = 4²- 11 13) 8x + 4 = 7x + 11 14)72 + 8 = x + 68
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III.- Problem Soving.-
15. The spelling and grammar test was taken by 217 students. Thirty-seven failed.
What percent passed?
a). 13 b). 17 c). 83 d). 87
16. Last year, the school spent $8,300 for office equipment. This year, it will spend
5 percent less. How much will it spend this year.
a). $7,885 b). $7,737 c). $6,640 d). $6,690
17.- There are 30 students in 7th H, 14 of them play football. What percent of the
students in 7th H play football?
18.- Yesterday I bought a CD that was on sale at $30. It was 25% its original price.
What was its original price?
19.- In a concert 75% of the attendants were on time. If there were a total
of 560 people. How many were on time? How many were late?
20.- How many outcomes would you have if you throw three coins to the air?

2. Math Practice for 4th Period Exam -2- 7th Grade
IV.- GEOMETRY.- Draw and find the area of:
21- A triangle which measures are 5cm, 9cm and an angle of 50°.
Remember the steps:
1.- trace a line segment, (any of the 2)
2.- measure the angle,
3.- trace the other line segment,
4.- trace the third line segment to finish the triangle.
5.- measure the height to find the area.
22- A rhombus which diagonals measure 6cm and 4cm.
23- Can you trace a triangle which measure are 4cm, 3cm 5cm. If it is possible,
Trace it and find the area.
24.- Find the area of a circle that has a diameter of 12 cm:
25.- How much would I need to cover the football field with grass if it measures
20m length and 12m width?
26.- Draw a tree diagram to show the possible combinations with the following clothes:
2 pair of jeans, 6 t-shirts, boots, sneakers, and sandals
V.- EXPONENTS
27.- 3²=_____ 28.- (y + 3)²= _______, y= 2 29.- x² + 8=_____, x=2 30.- x³ =____, x=4