Question

Số?

a	b	c	a + b + c	a – b + c	a + b x c	(a + b) : c
6	3	3
10	2	6
30	5	7

Answer 1

a	b	c	a + b + c	a – b + c	a + b x c	(a + b) : c
6	3	3	12	6	15	3
10	2	6	18	14	22	2
30	5	7	42	32	65	5

Answer 2

a	b	c	a + b + c	a – b + c	a + b x c	(a + b) : c
6	3	3	12	6	15	3
10	2	6	18	14	22	2
30	5	7	42	32	65	5