Base 10 and standard Subtraction - Lesson for Grade 1, Chapter - Addition and Subtraction 20-100
In the lesson titled "Base 10 and Standard Subtraction," first-grade students will embark on an educational journey to master subtraction within the range of 20 to 100, laying a crucial foundation in their mathematical education. This lesson is part of the "Foundations in Operations Within 100" unit, focusing on enhancing students' understanding and skills in both base-10 concepts and standard subtraction techniques without regrouping.
Through engaging activities such as "Subtracting with Base Ten Blocks" and a variety of worksheets including "Subtracting with Base Blocks Worksheet," "Which Is Correct? Math Worksheet," "Subtraction Quest Worksheet," and "Base 10 Subtraction (No Regrouping)," students will learn to visually and conceptually grasp the idea of subtraction. These hands-on and interactive methods are designed to foster a deep understanding by breaking down numbers into tens and ones, making the process of subtraction more tangible and less abstract.
Understanding base 10 and mastering standard subtraction techniques are fundamental skills that serve as building blocks for future mathematical concepts. They not only enhance numerical fluency but also improve problem-solving abilities. By developing a solid foundation in these areas, students are better prepared for more complex operations and mathematical challenges in higher grades.
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Activity 1 / Subtracting with Base Ten Blocks
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Activity 2 / Subtracting with Base Blocks Worksheet
Base ten blocks offer little mathematicians concrete ways to understand how place value works when it comes to subtracting. With this fun and easy-to-follow worksheet, they'll look at the subtraction problems and then use the blocks that are crossed out to help them solve the subtraction problems with accuracy. When they can see equations in representation, they'll be able to work on their automaticity with number reasoning as they come across larger numbers.
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Activity 3 / Which Is Correct? Math Worksheet
Young mathematicians will be able to gain mathematical confidence as they use this bright and colorful worksheet to solve subtraction problems. They'll be able to use the base ten blocks representations to subtract, and then they'll look for the appropriate number sentence to match the representation of the blocks. It's great practice for developing number sense that will lead to automaticity for higher-level math problems.
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Activity 4 / Subtraction Quest Worksheet
Let your little mathematicians take a math quest full of fun! This free and downloadable PDF worksheet will have them use base ten block representations to decide whether the difference for each problem is 34. They'll solve each problem in the quest, and then mark the equations where the difference is 34, building number sense and challenging themselves at the same time! They won't even know it's math because it'll be so much fun!
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Activity 5 / Base 10 Subtraction (No Regrouping) - Quiz
In this assessment, students will subtract to solve equations by using base 10 blocks.
