Video: Multiplying fractions and mixed numbers

Video (4-minute long) to help us understand how to multiply fractions and mixed numbers.

Sum up all the numbers with illustrations

This printable worksheet (PDF file) allows us to practise addition with illustrations, which are used as aids to make comprehension much easier. We have to sum up the objects and fill in the correct…

Adding and subtracting with natural numbers

Actividad para trabajar los términos de la suma, el cálculo mental, las aproximaciones, la automatización y la propiedad conmutativa.

Hear the difference? Numbers: millions and billions

In this activity we have to listen to the number and choose the correct answer.

Video: Multiplying and dividing negative numbers

Video (8-minute long) to help us understand how to multiply and divide negative numbers.

The sum and subtraction of decimal numbers

Theory, examples and exercises of The sum and subtraction of decimal numbers

Multiplication and division of decimal numbers

Theory, examples and exercises of Multiplication and division of decimal numbers

El Blog de Espe: Count with numbers

El Blog de Espe: Preschool Numbers Game

Monster Numbers: Un videojuego con una auténtica aventura matemática | Yo

MonsterNumbers (Android y Iphone) se trata de un auténtico videojuego en el que los niños deberán ir superando los diferentes niveles alternando dos modos de juego diferentes: