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In 2nd grade, students begin to master basic math facts by practicing both addition and subtraction within the same set of problems. This mixed operation skill helps children think flexibly about numbers, understand relationships between operations, and choose appropriate strategies for solving math problems. In real-life scenarios—such as budgeting money, comparing scores, or measuring ingredients—children use both addition and subtraction together. Developing fluency with these mixed operations lays the groundwork for higher-level math concepts and multi-step problem solving in later grades.
Elementary teaching of mixed addition and subtraction typically starts with reviewing basic math facts separately before combining them. Teachers use a variety of approaches, including number stories, math talks, and visual aids like number bonds and fact families. Students learn to read word problems carefully and decide whether to add or subtract based on context clues. Mixed problems are frequently assigned as part of math centers, small-group practice, or daily homework or classwork to reinforce decision-making and computation skills in an engaging and supportive environment.
Online learning platforms like I Know It offer students valuable opportunities to practice mixed addition and subtraction in an interactive format. This educational game-style lesson encourages 2nd graders to solve problems with immediate feedback, visual support, and motivating elements like animated rewards. The interactive lesson can be used in the classroom for extra practice or at home as part of a supplemental learning plan. By blending traditional instruction with digital resources, students get a well-rounded experience that supports math fluency and deepens understanding of core concepts.
This interactive math lesson is categorized as Level B and will assist 2nd grade students when learning adding and subtracting skills.
1.OA.1, MA.2.NSO.2.1, 2.4A
Operations And Algebraic Thinking
Represent And Solve Problems Involving Addition And Subtraction.
Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.2
Addition Facts Drill Within 10 (Level B)
In this game, students will answer basic addition facts as quickly as possible. This game builds accuracy, speed, & fluency. There\'s a scoring system & timer.
Basic Subtraction Within 20 (Level B)
Solve basic subtraction facts with this online game. Includes easy-to-understand subtraction models and an animated character that dances for correct answers.
