Home » Posts1-1-1 Rule : FREE Double Consonant WorksheetsPractice adding double consonants to words with their suffix with the handy 1-1-1 rule! FREE double letters worksheets for 1st and 2nd grade.September 19, 2022 · 1 min · 9 words · Michelle SandersTable of Contents1-1-1 RuleDoubling ruleWhat is the 1-1-1 Rule?1-1-1 Rule#Doubling rule#What is the 1-1-1 Rule?#