All Tasks
Exercise with a number to the power of an x value
In the following sum the power is $x$. Can you determine what the $x$ value is?
$2^2+5^2+3^{x} = 30$
# Powers
Reasoning
8
Animals at the zoo
The graph represents the percentages of the different groups of animals in a zoo. It is known that there are 5 animals of the category "Others" in the zoo.
How many animals are there in the zoo?
# Standard diagrams
Modeling
8
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