Excel is a spread sheet calculator													
													
A FORMULA:    =2.54*A2						area of a circle: P=pi*radius^2					cuboid: V=abc    S=2ab+2ac+2bc		
													
	input	output									a=	24.4	cm
											b=	12.2	cm
	45	0.505617978									c=	6.1	cm
	3	44											
	98.6	9.92975327									S=	1041.88	cm2
											V=	1815.848	cm3
##### Sheet/List 2 #####
Prepare a simple calculator of shopping price with value added tax valid in Greece.													
Replace data in columns G-L with FORMULAS.													
"to check correctness of rows, you may compare your values to "													
http://www.calkoo.com/?lang=3&page=8													
													
Greece Value Added Tax 													
													
"From July 1, 2010 VAT in Greece is 23%"													
"There is a reduced rate of 13% that applies, in the main, to food, medicines. The V.A.T rate for hotel accommodation, books and newspapers is 6.5%."													
													
													
													
													
calculation of			INPUT						OUTPUT				
V.A.T.			unit price	qty		total price	23	13	6.5	%	TOTAL		
			without tax			without tax		TAX			price with tax		
		bread	3.10	1		3.10		0.40			3.50		
		coffee	21.98	2		43.96		5.71			49.67		
		coke 2L	2.30	10		23.00		2.99			25.99		
		book	9.35	1		9.35			0.61		9.96		
 		newspaper	1.50	1		1.50			0.10		1.60		
		cigarettes	6.25	2		12.50	2.88				15.38		
		chew.gum	0.95	5		4.75	1.09				5.84		
		ouzo	12.12	3		36.36	8.36				44.72		
													
						134.52	12.33	9.11	0.71		156.66	EUR to be paid	
													
													
													
													
													
													
##### Sheet/List 3 #####
"month
of the year"	"average
max. temperature °C"	"average
min. temperature °C"	"average
sea temperature °C"
1	10	5	13
2	11	5	12
3	14	7	13
4	18	11	14
5	23	16	17
6	27	19	21
7	30	22	23
8	30	22	23
9	26	19	22
10	20	14	21
11	15	10	18
12	12	7	15