how long have calculators been around

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how long have calculators been around	0.7	0.1	6814	57	37
how	1.42	0.2	8887	26	3
long	1.07	0.8	3432	43	4
have	1.33	0.6	1332	26	4
calculators	0.95	0.2	5053	54	11
been	1.11	0.7	4092	9	4
around	1.52	0.4	8858	4	6

Keyword	CPC	PCC	Volume	Score
how long have calculators been around	1.94	0.8	1279	8
how long has it been calculator	1.92	0.6	1100	68
how many years has it been calculator	0.63	0.6	3419	89
when did calculators become common	1.28	0.7	4577	8
when were calculators made	1.06	0.2	5369	50
the history of calculators	0.95	0.5	3914	51
when were calculators introduced	0.76	0.7	4415	82
what year were calculators invented	0.26	0.2	8403	19
when were calculators invented	0.44	0.4	6702	10
when were modern calculators invented	0.51	0.9	3445	34
when did calculators come out	0.62	1	9870	89
when was the calculator created	0.32	0.8	6053	35