R-Controlled Vowels Decodable Word Problem Worksheet — Subtraction Within 20 — #57

R-Controlled Vowels decodable word problem worksheet #57. Pairs r-controlled vowel (ar, or, er, ir, ur) reading practice with subtracting within 20 using a number line, ten-frame, equation box, and part-part-whole organizer. Supports CGI/CRA word problem instruction and gives students a structured routine for tackling math word problems.