Representing numbers with Euro, Abacus, and Decimal
Digits
Until now you have learnt to represent monetary values by
means of the Euro microworld.
In this part of the course you learn to represent numerical
values by means of the Abacus microworld.
You learn as well how to write numerical values in the
decimal representation system using the Number Building
microworld.
A two euro coin is represented in the abacus with two balls
in the unit stick
Corresponds to
A 20 euro banknote is represented in the abacus by two balls in
stick of the ten.
Corresponds to
A 20 cents coin is represented in the abacus by two balls in
decimal stick.
Corresponds to
70 cents are represented in the abacus by seven balls in decimal
stick.
Corresponds to
253.32 euro
253 euro and 32 cents can be represented in the abacus in
the following way.