Addition and Subtraction 3.NBT.A.2 Grade 3 CMAS Practice Test Questions TOC | Lumos Learning

Addition and Subtraction 3.NBT.A.2 Question & Answer Key Resources Grade 3 Mathematics - Skill Builder + CMAS Assessment Rehearsal

Grade 3 Mathematics - Skill Builder + CMAS Assessment Rehearsal Addition and Subtraction

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Silvia needs to complete 55 hours of volunteer work. So far she has completed 12 hours. How many more hours does she need to complete?