All Tasks
Calculate abscissa with Pythagorean Theorem
Calculate the exact value of abscissa of point $\ {A}$.
# Pythagorean theorem
Learning
8
Lake modeling
In a lake, there are p fish. For each fish there are 20 fish eggs. Among the 20 fish eggs, just 7 hatch for each fish. Can you tell how many fish will be in the lake once the eggs hatch?
# Terms with variables
Modeling
7
Supportive task for "From natural to algebraic language"
How can we express with symbols an even and an odd number respectively?
# Natural numbers
Training
8
Challenging task for "from natural to algebraic language"
Translate the following sentence in algebraic language:
The quintuple of a number subtracted to its triple is equal to its double.
# Numbers & operations
Training
8
Challenging task for Common elements in different expressions
What do the following mathematical expressions have in common?
$(x-2)^4; |-3|; 5; x^2+1.$
# Numbers & operations
Reasoning
9
Common elements in different expressions
What do the following mathematical expressions have in common?
$3 \cdot 5a$, $(x+y) \cdot 3$, $9v$, $3z+3w$, $\frac{6c}{2}$
# Terms
Reasoning
8