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MATHEMATICS 4Lourdes School of Mandaluyong1st Trimester Exam Reviewer
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Mathematics 4 1 Prepared by: Mauie Flores
LSM 2010-2011 www.the24hourmommy.com ©
MATHEMATICS 4
Lourdes School of Mandaluyong
3rd Trimester Exam Reviewer
Read and answer sentence below. Express each ratio in its simplest form.
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1. Seven out of 21 birds are crows. What is the ratio of crows to other
birds?
2. There are 36 boys in the gym and 10 of them are playing basketball.
What is the ratio of the boys playing basketball to those who don’t?
3. Section 1 donated a total of 54 canned goods. Eighteen of these are
pork and beans. What is the ratio of pork and beans to the other
canned goods?
4. What is the ratio of vowels to consonants in the name, LOURDES
SCHOOL OF MANDALUYONG?
5. Eighteen out of 90 women prefer to use anti-dandruff shampoo every
day. What is the ratio of these women to those who don’t?
Solve the following proportions for n.
1. 50 : 100 : : 25 : n Answer: __________
2. n/15 = 1/3 Answer: __________
3. n : 48 : : 10 : 30 Answer: __________
4. 20/16 = 15/12 Answer: __________
5. 30 : n : : 10 : 16 Answer: __________
Write a proportion and solve.
1. Smart Bookstore earns Php 15 000 for every 300 science textbooks that they sell.
How many science textbooks were sold if the total sales for the day amount to
Php 25 000?
2. It will take 3 meters of cloth to make one dress. How many dresses can be made
from 90 meters of cloth?
Mathematics 4 2 Prepared by: Mauie Flores
LSM 2010-2011 www.the24hourmommy.com ©
3. Each inch in a map is equal to 5 feet in actual land distance. How far is the
actual distance between two points if they are 20.5 inches apart in the map?
4. Divide 1035 in the ratio of 2 : 3 : 4.
5. Nina and her classmates were able to collect 300 old toys for donation to three
different institutions. If they are going to follow the ratio 2 : 3 : 5, how many toys
will each institution receive?
Find the percentage.
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1. 28% of 81
2. 53% of 79
3. 87% of 105
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4. 8% of 50
5. 12% of 72
Find the rate.
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1. What percent of 80 is 16?
2. What percent of 8 is 5?
3. 48 is what percent of 160?
4. How many percent of 60 is 5?
5. 23 is what percent of 300?
Find the base.
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1. 75% of this number is 35
2. 200% of this number is 16
Mathematics 4 3 Prepared by: Mauie Flores
LSM 2010-2011 www.the24hourmommy.com ©
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3. 78% of this number is 117
4. 15% of this number is 18
5. 4% of this number is 2
Examine the drawing inside the box. Answer the questions that follow.
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1. Name 3 points.
2. Name 1 line segment.
3. Name 2 rays.
4. Give the name of the lone plane in the drawing.
5. Name 2 lines that intersect with each other.
6. Name 2 lines that are perpendicular to each other.
7. Name 2 lines that are parallel with each other.
8. Name 2 right angles.
9. Name 1 acute angle.
10. Name 1 obtuse angle.
11. Name 2 straight angles.
12. Name 1 reflex angle.
13. Name 1 pair of complementary angles.
14. Name 1 pair of supplementary angles.
Write the type of triangle below each drawing.
According to length of sides
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Mathematics 4 4 Prepared by: Mauie Flores
LSM 2010-2011 www.the24hourmommy.com ©
According to angles
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Draw the polygon that is being asked.
heptagon
decagon
icosagon
undecagon
dodecagon
octagon
hexagon
pentagon
nonagon
Identify these quadrilaterals. Write their names on the blanks.
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Mathematics 4 5 Prepared by: Mauie Flores
LSM 2010-2011 www.the24hourmommy.com ©
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Find the area and perimeter.
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Construct a line graph or a bar graph for the data below and answer the questions that
follow.
Sales of Smart Bookstore for 2010
January – Php 77 590
February – Php 68 000
March – Php 23 800
April – Php 20 750
May – Php 97 830
June – Php 128 359
July – Php 95 660
August – Php 90 700
September – Php 72 000
October – Php 76 000
November – Php 89 450
December – Php 91 685