## All Tasks

#### In search of Big Macs

Jon is an American guy who loves Big Macs. While on a trip around the world, he eats eight Big Macs: two in Germany, one in the United States, two in Switzerland, and three in India.
Assuming that the prices of the Big Mac are:
In Germany 3.59 €, in the United States 4.59 €, in Switzerland 5.99 € and in India 1.77 €.
a) What was Jon's total expenditure on Big Macs during his vacation?
b) If his flight was canceled, Jon would stay in the United States. In the United States, how much would he spend on the same number of Big Macs?

# Decimal fractions

# Units & rounding

Training

5

#### The population

The population of a town is 20.000 citizens. From them 8.206 are men. Men are 426 fewer than women. How many children are living in the town?

# Operations with natural numbers

Training

5

#### Distributive Property in Algebraic Expressions_2

Match the following algebraic expressions:
1. $4(x-2)-3+x$
2. $3(x-2)-(x-3)$
3. $-2(-x+2)+3(x+2)$
4. $-(x-2)+3(x-2)$
to its equivalent simplified expression, by writing the number of expression to the right

# Unassigned

Training

8

#### Granit prism

Calculate the volume of the granit block. Round the result in m³ to two decimal places.

# Unassigned

Training

8

#### Granit bench

Calculate the weight of the sitting part of a granit bench. The sitting part of the bench has the following dimensions: width 43 cm, height 13 cm, length 180 cm. The density of granit is 2600 kg/m³. Give the result rounded to the nearest whole in kilograms.

# Unassigned

Reasoning

8

#### Cobblestones

One cobblestone is a cube with the edge 8 cm long. How many of these cobblestones fit to one cubic meter? Give the result as a whole number.

# Unassigned

Modeling

8