Mathex 2013

Mathex is a mathematical problem solving competition. This year's competition was held at Whangarei Boys' High School and is also part of a national wide problem solving event.  Our school entered two teams.  It was the first time we had entered the event.  Each team consisted of four competitors, including one runner.  There were around 45-50 teams vying for the prestigious 'Year 5/6 Northland Mathex Cup.'  Our team relished the mathematical challenges and represented the school with distinction and determination.  Special thanks to Mrs. Gunson for organising the team.  Mr. Werder represented the school as a marker.  Below are some example questions from the 2010 Mathex Competition.  Have a GO!!!

YEAR FIVE  Mathex 2010 Question 1 It took Mary 45 minutes to clean her room and stack her books.  What fraction of an hour had she spent?

YEAR FIVE Mathex 2010                                  Team Question 2 A bakery sold one hundred thirty-six thousand, four hundred eighty-two chocolate chip cookies last year.  Write this number in standard form.

YEAR FIVE Mathex 2010                                     Team Question 3 A man has to be at work by 9:00 a.m. and it takes him 15 minutes to get dressed, 20 minutes to eat and 35 minutes to walk to work.  What time should he get up?

YEAR FIVE Mathex 2010                                   Team Question 4 How many times does the number 8 appear between 7 and 77?

YEAR FIVE Mathex 2010                               Team Question 5 I am a number. I am greater than the product of 4 and eight. I am less than the difference between 550 and 515. I am an even number. What number am I?