2.2 Unit Overview

Find the values of groups of coins, subtract by place with decomposing, and solve one- and two-step story problems.

By Amplify Classroom

Grades: 2nd Grade

Subject: Math

Learning goals: Unit at a Glance Sub-Unit 1: The Value of Money (Lessons 1–6) • Find the value of a group of coins. • Use addition within `100` to solve story problems involving money. Sub-Unit 2: Subtracting Within 100 (Lessons 7–12) • Subtract within `100` using strategies based on place value, including decomposing a ten and applying the properties of operations. Sub-Unit 3: Adding and Subtracting to Compare (Lessons 13–16) • Solve Compare story problems, with unknowns in all positions, within `100`. • Add and subtract within `100` using strategies based on place value understanding and the relationship between addition and subtraction. Sub-Unit 4: Solving One- and Two-Step Story Problems (Lessons 17–22) • Represent and solve one- and two-step story problems involving addition and subtraction within `100`.