John van Gellecum

John van Gellecum published 2 applications on Google Play, 1 people rated these apps with an average rating of 2.00!

Roman Numerals by John van GellecumRoman Numerals

Rated 4.00(1) — John van Gellecum

How the Roman Numerals work is explained step by step.Includes several quizzes to test your skills.

$0.99
Romeinse cijfers by John van GellecumRomeinse cijfers

Rated 0.00(0) — John van Gellecum

Stap voor stap wordt uitgelegd hoe de Romeinse cijfers worden samengesteld.Voor iedere groep is er een quiz om je kennis te testen. Step by step how the Roman numerals are compiled.For each group, there is a quiz to test your knowledge.

$0.99