Tuesday, 22 November 2011

        Three plums weight as a peach. A plum and a peach weight as an apple. If an apple and six plums weight as a melon, how many plums weight as a melon?

Monday, 21 November 2011

More tasks from Lithuania

  • How many is          111111111111111111111111x0=???
  •  How many zeros will be in a product?
    20 * 40 * 50 * 60 =???
  • Three hens lay 3 eggs per 3 days. How many eggs will 12 hens lay per 12 days?
  • Mummy bought 3 muffins for her 3daughters: Jane, Sally and Polly. One muffin is with apples, the other- with pears and the third one is with poppies. Sally hates apples and poppies, Jane hates pears and Polly likes everything. Help mummy to share muffins to her daughters:-)
  • Jack and Sam are students. Their surnames are Black and Green. Which surnames have Jack and Sam got if we know that Green and Jack don't like History?
  • Good luck
  • Greda 5a
  • Lithuania

Sunday, 20 November 2011

The equation

Insert +  /-  / x  /:   to make the equation correct
(22   8)  5  3 =3

Arminas 5a


Friends decided to go to the football match. Some of them bought 3 tickets and paid 75 euros.The others paid 125 euros for the same tickets. How many tickets did they buy?

Evelina 5a

Find the secret number

Today is a chilly day but we hope the sun will warm us up a little. Winter is here my friends! If you stay indoors, grab a paper and a pencil and have fun with the blog’s drills. Good luck :)

Ο Γιώργος σκέφτηκε έναν αριθμό. Στη συνέχεια έκανε με αυτόν τις εξής πράξεις: πρώτα διαίρεσε τον αριθμό με το 9, μετά στο αποτέλεσμα που βρήκε πρόσθεσε 9, έπειτα το αποτέλεσμα που βρήκε το πολλαπλασίασε με το 9 και βρήκε 999.Ποιόν αριθμό έβαλε στο μυαλό του ο Γιώργος;

George jotted down a number and he performed the following calculations:
  • First, he divided this number by 9.
  • He added 9 to the result.
  • Then, he multiplied the outcome with 9 and he got as final result the number 999.
Can you find the number George jotted down?

6th grade, 13th primary school of Drama, Greece

Saturday, 19 November 2011

Eggs and Boxes

O Sr. Silva pode guardar os ovos das suas galinhas em caixas que levam 6 ovos ou em caixas que levam 12 ovos. Qual o menor número de caixas que o Sr. Silva precisa para guardar 66 ovos?

Mr. Silva can put the eggs from his chickens in boxes that take 6 eggs or in boxes that take 12 eggs. What is the smallest number of boxes that Mr. Smith needs to put 66 eggs?

3rd Grade - Colégio Monte Flor - Portugal

Wednesday, 16 November 2011

Kitty the cat

Kitty the cat goes by bus. She has got 4 baby- kittens with her. Three sons and one daughter.  How many legs are there on the bus?

Gabrielė 5a

Saturday, 12 November 2011


A bartender paid 75 euros for 5kg of sausages. How much he would pay for 3 kg of the same kind of sausages?

Goda 5a

Thursday, 10 November 2011

Dear friends,
We have got more tasks for you:-)

1. There are 100 apples and only 5 baskets. How to place all apples into the baskets?
2. My dad had 5 banknotes of 20 euros. He bought a pair of shoes and spent 56 euros. He bought a jumper and spent 25 euros. How much money was left for his coffee?
3. There are 45 apples on the oak. Each branch holds 5 apples. How many apples are there on the oak? :-)
4. One landlord had 5 servants and a big palace of 100 rooms. One servant tidies 20 rooms every day. How many days do they need to tidy all the rooms? Half the rooms?

Gintas, Greda,Rūta

Wednesday, 2 November 2011

Saving money

O Vasco recebe 5€ todas as semanas. Gasta por dia 0,90€ no lanche e o restante guarda no seu porquinho mealheiro.

1.Que quantia de dinheiro economizou o Vasco numa semana?

2.Que quantia poupará num mês? E em 12 meses?

Vasco receives € 5 every week. He spend´s € 0.90 a day for his lunch and the rest stores on the piggy bank.

1. What amount of money saved Vasco in a week?

2. How much spares in a month? And in 12 months?

A family

   Mother, father, son and daughter are 194 years together. How old is each of them, if the mother is 10 years younger than the father and she is two times older than the daughter plus four years. The age of the son is half of the age of the mother.
            Ramona and pupils III A from Romania

Are you good at Maths:-)

People eat three times per day. How many times do they eat a week?

A candle burns after 15 minutes. How long it takes to burn 10 candles if they were lit at the same time?

We live in  2011 . What is the total sum  of these numbers?

How much?     2 + 2 – 2 + 2 – 2 + 2 – 2 + 2 – 2 + 2

Good luck :-) 
Laima, Lina and  5a students

Tuesday, 1 November 2011

Prime numbers

When my teacher was asked about his age, he answered:
 “My age number is a prime number*, but if you reverse the digits the new-formed number can be divided by 5. Moreover, I wish I live up to this age”.
Can you find my teacher’s age?

*prime number is a number that can be divided only by 1 and itself e.g. 11 is divided only by 1 and by 11.

Πρώτοι αριθμοί
Όταν ο δάσκαλός μου ρωτήθηκε για την ηλικία του, απάντησε:
«Η ηλικία μου είναι πρώτος αριθμός αλλά, αν αντιστραφούν τα ψηφία διαιρείται με το 5 και ελπίζω να ζήσω τόσα χρόνια».
Πόσων χρονών είναι ο δάσκαλος;

6th grade, 13th primary school of Drama, Greece

Greetings from Drama, Greece

Hello dear partners
We are the 6th grade of 13th primary school of Drama, Greece.
We are happy to join you in this project.
I’m sending regards on behalf of the pupils
Dimitra Theodosiadou

Hello from Estonia!

First of all - we are very happy to be involved in such a great project!

Our students have already solved some of the problems. We've had lots of fun!
Now, I'd very much like to post photographs of students' notebooks as answers to this blog but it seems that it isn't possible to post any images as
a comment.
I think pictures from notebooks would make this project even more lively, and it would be very interesting to see how kids from different countries find answers and what the layout looks like.
Can we do anything about it? Of course, several kids work on the same problem, but only the best looking/right solution would be published here. Being published would be
as a prize for kids and I'm sure it'd motivate students to work harder.

Anyway, I'll post our best solution to the fox-bear-fish-problem here.
The author is Silver, Year 1.

All the best!