Keyword Analysis & Research: what does doubled mean in math

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does doubled mean in math	0.06	0.6	5432	41	30
what	0.63	0.5	8200	11	4
does	0.2	0.8	7681	26	4
doubled	1.17	0.3	6776	57	7
mean	1.74	1	9749	47	4
in	0.75	0.6	5605	85	2
math	0.46	0.6	2979	66	4

Keyword	CPC	PCC	Volume	Score
what does doubled mean in math	1.93	0.8	675	38