DONALD IN MATHMAGIC LAND

 

MATH CALENDAR FOR CHRISTMAS

Enjoy this math calendar for Christmas!
Math calendar

UNIT 5: DECIMAL NUMBERS

 PROBLEM:

  Fill in the boxes with the digits 1 to 9 ,using each digit only once: 

Ejercicios y problemas

OPERATIONS WITH FRACTIONS

Write down an operation (+,-,x or : ) with fractions for the following pictures:

                   
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DOWNLOAD THE EXERCISE

MULTIPLYING FRACTIONS

Multiplying fractions

WHICH CAR PARK IS FULLER?

TRIANGLES

Work out the rule and find the missing number.

HEXAGON FRACTIONS

What fraction of these hexagons is red?

UNIT 4: FRACTIONS

FRACTIONS

Fraction wall

Ejercicios
Exercises

PROBLEM: The missing lenghts

Find the missing lenghts.
The numbers in the boxes are the areas of the rectangles. The diagrams are not drawn to scale. 

 Area maze

 

PROBLEM: The party

In a party 3/4 of men are dancing with 3/5 of women.Which fraction of people are not dancing?

Need a hint?
Have a look at the following diagram:

THE PYRAMID

In this pyramid the number of each box is the sum of the two boxes below it.
Can you complete it?

NUMBER PUZZLE

Complete this puzzle using the digits 1 to 9 ,once only.

UNIT 3: INTEGERS

Meet the numbers

Ejercicios

Powers and roots

Product 100

The product of four different positive integers is 100.
What is the sum of these four integers?

Flora the florist

Flora the florist has 24 white, 42 red and 36 yellow roses.
What is the greatest number of bunches she can make if she uses all of these flowers and all the bunches are identical?

POWER OF A POWER

To what power should we raise 4⁴ to get 8⁸ ?

BRACKETS

UNIT 2: POWERS AND SQUARE ROOTS

UNIT 2:

Exercises
Problemas

THE SIEVE OF ERATOSTHENES

The Sieve of Eratosthenes is an ancient method for finding all prime numbers up to a specified number. It was created by Eratosthenes (275-194 B.C., Greece), an ancient Greek mathematician. 

Prime numbers

UNIT 1: NATURAL NUMBERS, DIVISIBILITY

VIDEO: MULTIPLES AND FACTORS

VIDEO: DIVISIBILITY

EXERCISES

PROBLEMAS

LECTURA RECOMENDADA

Si os gusta leer os recomiendo el siguiente libro:

El diablo de los números
Autor: Hans Magnus Enzensberger

A Robert no le gustan las matemáticas porque no las acaba de entender. Pero una noche sueña con un diablillo que pretende iniciarle en la ciencia de los números.

Si no encontráis el libro os dejo un enlace para descargarlo en formato PDF:
El diablo de los números

Aquellos que quieran subir nota con la lectura del libro deberán completar la siguiente ficha:
Ficha de trabajo