This document contains a 13 question math challenge test from 2012 with the following rules: the teacher adds up all points earned, divides by the number of students, and subtracts one point for every mistake. For example, if a question is worth two points and a student gets three questions right but makes two mistakes, they would earn no points. The test contains a variety of math problems including: converting times, writing three-digit numbers with 1-2-3, determining the number of possible five-digit numbers using 1-2-3-4-5 without repetition, calculating percentages, probability, solving equations, determining food supply durations, completing country names on boxes, identifying symmetrical shapes, and calculating volume and surface area.

1. MATHS
CHALLENGE
TEST
2012

2. Rules:
The teacher has to add up all points. Then he has to divide the
points by all members
For every mistake the teacher has to subtract one point!
For example:
There are two points for a question and therefore the student
has to give three right answers. If the student makes two
mistakes, he gets no points!

3. 1. The winner of the 800m course had following running-time
1 minute and 45,08 seconds
How long was it in seconds?____________
Make your notes, how you calculate:
____________________________________________________
____________________________________________________
2 points/__
2. Write all three-figure numbers with the numbers 1, 2 and 3. Don’t use the
same number twice. 2 points/__
________________________________________________________________
3. Luisa knows that she can make 24 figure numbers with 1, 2, 3, and 4. But she
can not use the same number twice or more.
How many five-figure numbers can she make with 1,2,3,4 and 5? Don’t use the
same number twice. 2 points/__
________________________________________________________________

4. 4. Mark 20%!



1 point/__
5. There are two green, one yellow, two white, one orange and four red
chewing gums in a box.
Jan wants to take out one chewing gum.
How is the probability for taking out a red chewing gum?
___________________________________________________________
_____ 1 point/__

5. 6. Michael and Julia have done a happy wheel with their hands
Mark the right answer:
Michael Julia
___ Michael’s wheel has the biggest win probability
___ Julia’s wheel has the biggest win probability
___ The win probability is the same
2 points/__

6. 7.
8x = 72
What is x?
1 point/__
8.
9x = 6,3
What is x?
______________________
______________________
______________________
______________________ . 1 point/__
9. Five rhinoceros have food for six weeks.
Ten rhinoceros have food for _______ days!
. 1 point/__

7. 10. Here are some nets for boxes. Martin wants to write the names of the
countries on the boxes. Then he wants to stig the boxes together.
Complete the name on the box!
Now it’s your turn; Put the L in the right order and in the right small box!
2 points/__

8. 11. Complete to a symmetrical figure!
1 point/__

9. 12. Symmetrical? Say Yes or no!
2 points/__

10. 13. This is a quader!
The Volume is ______ dm3
1 point/__
The touchable surface is ______ cm2
1 point/__