<s>
RekenTest	B-Language
is	O
educational	B-Application
software	I-Application
to	O
practice	O
,	O
analyze	O
and	O
test	O
mental	O
calculation	O
skills	O
in	O
arithmetic	O
operations	O
such	O
as	O
addition	O
and	O
subtraction	O
,	O
the	O
multiplication	O
tables	O
,	O
decimals	O
,	O
money	O
problems	O
,	O
percentages	O
and	O
fractions	O
.	O
</s>
