## All Tasks

#### Equivalent expressions

Which of the following expressions is equivalent to 3k+6?

# Numbers & operations

Reasoning

8

#### From natural to algebraic language

Translate the following sentence in algebraic language:
The square of an even number

# Numbers & operations

Training

8

#### Associative property for the sum

If a+b=9 then a+b+5=?

# Numbers & operations

Training

8

#### Uncle Scrooge monies

Uncle scrooge has a lot of money and he usually swim in it, if you know that there are 10000 monies of 1 euro, 15000 monies of 2 euro and 8000 monies of 50c and 2000 banknote of 5€, how much euros does he have?

# Operations with natural numbers

Training

4

#### Linear equation transformation

Find the value of x solving the equation.

# Linear equations

Training

7

#### Properties of linear functions

Is the statement true or false?
The graph for the equation f(x)=4.5x+2 is a straight line through the origin.

# Linear functions

Learning

8