1. COLEGIO SAN PATRICIO
Math Practice for 2nd Period Exam
School Year 2010 – 2011
Name _____________________________________Teacher____________________________
Date___________________________________________List No.__________7th
_____________
I.- The meaning of the Numbers: underline the correct answer
1.- 24.8 km is the same as: 24 km 50m; 24,000km 8 m; 24km 800 m
2.- 16.8 millions: 16 million 8 thousand; 16,80,000; 16 million 800 thousand
3.- 5.2 kg: 5 kg 2 g; 5 kg 200 g; 50 kg. 2 g
II.-Tree Diagram.- Draw a tree diagram to answer the question .
4.- From the different kinds of pants customers can choose from 4 colors, 2
sizes, and either cotton or wool How many choices does a customer
have?
a) 16 b) 27 c)54 d) none
* Answer the questions
5.- Find the total number of choices if only 5 colors are available: ___________
III.- PROPORTIONS
6.- If Tina has studied 1 of the 14 pages she has to study for the period exam.
7
How many pages is she missing?
7.- If I have finished 3 of the 24 problems of the math homework, how many
4
am I missing?
8.- The new highway to Saltillo has 300 km. If only .5 km have light how many
meters are still missing?

2. 10.- To buy a box of brownies Mary put $21.00, Roxy $18.00 and Marion $24.00.
If there are 21 brownies in the box, how many brownies will each one get?
11.- If 6 students got 18 donuts in a party, how many will 12 get?
12.- If hotdogs are sold at $4.50 each. How much will 10 cost?
IV.- SCALE DRAWING
Original copy 1 copy2 copy 3 copy 4 copy 5
1.-SIDE A 4 ______ 2 ______ ______ 2
2.-SIDE B 16 ______ ______ 4 ______ ______
3.-SIDE C 5 ______ ______ ______ 20 ______
4.-SIDE D 2 4 ______ ______ ______ ______
V.- GEOMETRY.-
Trace the following:
13.- A line segment
14. A line segment with its “Mediatriz”
15.- A 120º angle 16.- the “Bisectriz” of this angle

3. VI. ANGLES.
17. What is the central angle of a dodecagon?
18.What is the interior angle of an “undecagon”?
Complete the following sentences:
19.- A line that has ending points ____________________________________________
20.- The sum of the measures of each side ___________________________________
21.- The symmetry line of a line segment _____________________________________
22.- The line that goes from the center of the regular polygon to the center of
one of its sides__________________________________________________________
23.- The line that divides an angle into two equal angles ______________________