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Food for Hungry Minds School - Makati Third Periodical Test in Math 4B S.Y. 2010 - 2011 CN ____ Name: _______________________________________ Grade and Section: _______________________________________ Date: _____________ Score: ______________I I. Write True on the blank before each number if the statement is correct. Otherwise, write False. (10 pts.) ___________1. In changing a mixed number to an improper fraction, multiply the whole number by the denominator and add the numerator. ___________2. Fractions with different denominators are called proper fractions. ___________3. Proper fraction is a fraction whose numerator is greater than the denominator. ___________4. Denominator names the equal parts in a whole or in a set. ___________5. Equivalent fractions are formed by multiplying the numerator and the denominator by the same number greater than 1. ___________6. Symbols >,<, or = are used to compare fractions. ___________7. All odd numbers are prime numbers. ___________8. One is neither prime nor composite number. ___________9. The GCF is the greatest number which is common to two or more numbers. ___________10. All even numbers are composite numbers. II. Identify the term described in each sentence. Write only the letter of your answer. Choose the answer on the box. (5 pts.) a. Fraction b. Equivalent c. Similar fraction d. Mixed Number e. Improper fractions fraction _____1. It is a fraction whose denominators are the same. _____2. It names part of a whole or a set. _____3. It is a fraction whose numerator is greater than or equal to its denominator. _____4. It is a whole number and a fraction written together. _____5. These are fractions that name the same part of a whole or a set. III. Write P on the blank if the given number is a prime number and C if it is a composite number. (8 pts.) 1. 19 Prime Composite 2. 36 Prime Composite 3. 2 Prime Composite 4. 25 Prime Composite 5. 18 Prime Composite 6. 21 Prime Composite 7. 6 Prime Composite 8. 17 Prime Composite IV. Match each composite number with its prime factorization in column A. (5 pts.) Column A Column B _____1. 3x3 x5 a. 88 _____2. 3x3x2x5 b. 84 _____3. 5x5x7x2 c. 350 _____4. 2x2x7x3 d. 90 1 Food for Hungry Minds School - Makati Third Periodical Test in Math 4B S.Y. 2010 - 2011 _____5. 11x2x2x2 e. 45 V. Write the GCF of the given pair of numbers. (6 pts.) 1. 10 and 18 2. 15 and 35 3. 24 and 32 GCF = GCF = GCF = 4. 10 and 100 5. 27 and 45 GCF = GCF = 6. 12 and 8 GCF = VI. Find the LCM of each set of numbers. Use any of the methods learned. (5 pts.) 1. 7 and 21 2. 6 and 4 3. 18 and 36 LCM = LCM = LCM = 4. 5 and 3 5. LCM = 12 and 24 LCM = VII. Draw figures to represent each fraction. (5 pts.) a. 3 4/5 b. 3 2 d. 4 2/3 c. 4 8 e. 7 5 VIII. Classify the following fractions. Write proper, improper, or mixed number on the blank before the numbers. (5 pts.) __________1. 11 2/9 __________2. 18/9 __________3. 5/15 __________4. 5 7/10 _______________5. 12/6 IX. Fill in the missing number to show equivalent fractions. (8 pts.) 1. 2 2. 12 3. n 8 24 9 = = = n n 4 36 5 15 n = ____ 5. 8 n = ____ 16 6. 12 n 9 = 32 n = ____ 7. n 4 = n = ____ 4. = n = ____ n = ____ 12 8. n 18 1 15 = n = ____ 2 n 10 = n 18 21 7 3 n = ____ Food for Hungry Minds School - Makati Third Periodical Test in Math 4B S.Y. 2010 - 2011 X. Identify each set of fractions as similar or dissimilar. Write your answer on the space provided. (5 pts.) 1. 3, 5, 9, 8 ____________________ 10 10 10 10 2. 4, 4, 4, 4 6, 7, 11, 9 ____________________ 3. 12, 5, 6, 7 15, 15, 15,15 ____________________ 4. 2, 3, 5, 9 4, 8, 10, 9 ____________________ 5. 12, 5, 6, 7 13, 13,13,13 ____________________ XI. Change improper fractions to mixed numbers. (6 pts.) 1. 33 2. 25 3. 16 4. 27 5 12 3 10 5. 15 6. 20 7. 17 8. 11 9 6 7 2 XII. Write the mixed numbers as improper fractions. (6 pts.) 1. 2. 3. 6 1 1 6 3 5 8 2 3 5. 6. 11 4 7. 3 1 12 4. 2 11 8. 8 4 4 10 4 6 10 6 XIII. Write >, <, or = on the space provided to compare fractions. (6 pts.) 1. 1 2. 6 3. 6 1 1 2 4 8 18 18 4. 3 3 3 9 9 5 15 15 5. 2 6 13 13 6. XIV. Write the given fractions in its lowest terms. (10 pts.) 1. 5 2. 9 3. 8 4. 11 6. 21 20 6 7. 2 8. 15 14 6 36 9. 3 1 4 5. 15 16 25 4 10. 18 12 36 Food for Hungry Minds School - Makati Third Periodical Test in Math 4B S.Y. 2010 - 2011 VI. Analyze and solve the following problems. Show your solution. (10 pts.) 1. A bulletin board was equally divided into 6 academic subjects. What part of the board is occupied by 1 subject? Draw a figure to the show the fraction. 2. John scored ½ of the perfect score of 30 points. What was his score? Show your solution. 3. There were 8 baseball players in a team. Only 3 were awarded as beat players in the team. What fraction of the players were best awardees? Draw figure to show fraction. 4. Bobby used 5/2 meters of chicken wire to fence his garden. How many meters of wire did he use? Show your solution. 5. Julia helped her mother I cooking. She used 3/8 can of cooking oil in frying fish. And 1/8 can in frying meat. In which dish did she use more oil, in fried fish or fried meat? Why? 4