#### A Bag with balls of different colours

A bag contains only 10 red balls, 5 green balls and 5 blue balls. If we take one ball out of the bag at random, we can say that:

# One-stage random experiments

Training
8

#### Graphic representations of fractions

How would you draw the fraction $\dfrac{5}{4}$?

# Fractions

Reasoning
6

#### Fractions as part of a whole

Look at the pictures and fill in the blanks.

# Fractions

Learning
6

#### Asymptotes of the exponential function

Considering the function $f(x)=a^x$, it's true that

# Logarithmic function

Learning
10

#### Subtraction of Powers

What is the value of the follow subtraction? $2^2-2^0 =$?

# Powers

Learning
8

Solve this addition between fractions: $\dfrac{27}{27}+\dfrac{3}{4}+\dfrac{5}{2}+\dfrac{13}{15}+\dfrac{1}{20}$