#### Number puzzle

Which term matches the number puzzle? 3 consecutive numbers add up to 99.

# Linear equations

Reasoning
9

#### Video games 3

Carla and Javier have €36 between the two of them to buy video games. If Carla has twice as much money as Javier, how much money do each of them have?

# Linear functions

Modeling
7

#### Video games 2

Carla and Javier like to play video games. Carla has x video games and Javier has 12 video games. Together they have a total of 27 video games. Write an equation that describes this situation. Do not use blank spaces.

# Linear equations

Modeling
7

#### Video games

Carla wants to play various video games. She has 20€ to play x games. Each video game costs 2€. Select the equation that corresponds with this situation

# Linear equations

Modeling
7

#### The water tank

In a house, the water deposit is at 2/7 its capacity. Three people have showers: The first one uses one fifth of the quantity in the tank; the second uses a third of what's in the tank and the third, three fourths of the firsts' quantity. Which is the capacity of the tank and how much water did the first two use is we know that the third used 10 litres to shower?
# Monomials & polynomials
# Units & rounding

Training
8

#### Guess the unknown number

Given a number, adding half of it, double it and triple it is 55. What number is it?

# Monomials & polynomials

Training
6