(a) How many groups are there if 12 is divided into groups of:
(i) 3; (ii) 4; (iii) 5?
(b) How many groups are there if 10 is divided into groups of 4?
(c) How many groups are there if 5 is divided into groups of 3?
(d) How many groups are there if 3 is divided into groups of 5?
(e) How many groups are there if 2 is divided into groups of 4?
(f) How many groups are there if 1 is divided into groups of 3?
In general, how would you calculate a ÷ b ?

Anthony Or. GeoGebra Institute of Hong Kong. (中文版：http://www.geogebratube.org/student/m14538)
orchiming@gmail.com