National Foundation Phase Maths Olympiad - Grade one - final round- 2007http://cnx.org/contenthttp://cnx.org/content/m35675/latest/m35675National Foundation Phase Maths Olympiad - Grade one - final round- 20071.12010/09/22 08:25:11.102 GMT-52010/09/22 08:34:42.727 GMT-5AMESA-KZNThe Association for Mathematics Education of South Africa - Kwa-Zulu Natalmark@markhorner.netamesakznamesakznamesakznMaths olympiad questions for grade oneenINSTITUTE FOR ADVANCEMENT OF MATHEMATICS AND SCIENCE (IAMS) NATIONAL FOUNDATION PHASE MATHEMATICS OLYMPIADGRADE ONE – FINAL ROUND PAPER: 2007 QUESTION BOOKLETDURATION: 1 HOUR 15 MINUTES MARKS: 20NAME OF LEARNER:___________________________________ NAME OF SCHOOL:____________________________________INSTRUCTIONS TO LEARNERS:1. You are expected to answer 15 questions.2. Use the answer booklet for your answers.3. Use the space provided for your working.4. You are not allowed to use the calculator.5. Read the question carefully before answering. Don’t rush.6. Your teacher will read the question to you.7. First 10 questions – 1 mark each.8. Questions 11-20: 2 marks each.Test Questions:Exercise 1How many circles are there in this arrangement?Exercise 2Which number is 2 less than 71?73; 69; 86Exercise 3Write down the number which is 9 more than 38.Exercise 4Give the value of
Δ%DELTA in this addition problem:Exercise 5Give the next number in this pattern.13; 18; 23; 28;……Exercise 6Find the value of
Δ%DELTA:48=Δ+Δ+Δ48 = %DELTA + %DELTA + %DELTAExercise 7Nellie counted in 5’s as follows:-5; 10; 15; 20; 25; . . .Write down the units digit of the 20^{th} number.Exercise 8How many blocks are there in this stack?Exercise 95 cans energy drinks cost R16. How many cans energy drinks could you get for R48 ? Exercise 10At a superstore you could get 2 CD’s free for every 5 CD’s bought. Jerrico received 10 free CD’s. How many CD’s did Jerrico pay for?Exercise 113 matchsticks are used to make 1 triangle. 7 matchsticks are used to make 3 triangles. 11 matchsticks are used to make 5 triangles. How many matchsticks are used to make the 11 triangles?Exercise 12When Cindy added two numbers the answer was 30.When she double one number and added this to the other number the answer was 42. Write down the larger number.Exercise 13When Pretty counted her dolls in 2’s she had A left. When she counted her dolls in 3’s she had none left. What is the smallest number of dolls Pretty counted?Exercise 14Tina was given 5 less health sweets than Sipho. Dineo was given 5 more health sweets than Sipho. All three had 42 health sweets. How many health sweets did Dineo have ?Exercise 15Three red beads are placed between every two blue beads. There are 16 blue beads. After looking at the arrangement below work out the number of red beads.B R R R B R R R B R R R B . . .