MATHS CHALLENGE

TEST

2012

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

1. The winner of the 800m course had following running-time1 minute and 45,08 secondsHow 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 thesame number twice. 2 points/__________________________________________________________________3. Luisa knows that she can make 24 figure numbers with 1, 2, 3, and 4. But shecan 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 thesame number twice. 2 points/__________________________________________________________________

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/__

6. Michael and Julia have done a happy wheel with their handsMark 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/__

7.

8x = 72What is x?

1 point/__

8.9x = 6,3What is x?________________________________________________________________________________________ . 1 point/__

9. Five rhinoceros have food for six weeks. Ten rhinoceros have food for _______ days!

. 1 point/__

10. Here are some nets for boxes. Martin wants to write the names of thecountries 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/__

11. Complete to a symmetrical figure!

1 point/__

12. Symmetrical? Say Yes or no!

2 points/__

13. This is a quader!The Volume is ______ dm3

1 point/__The touchable surface is ______ cm2

1 point/__