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Math

Number System

Operations And Algebraic Thinking

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  7. Fluently Subtracting Within 20

Fluently Subtracting Within 20 Lessons

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1st Grade - 2nd Grade

Addition Skills - Fluency Practice - Basic Arithmetic

Addition Skills - Fluency Practice - Basic Arithmetic

Lesson

Addition Skills - Fluency Practice - Basic Arithmetic

1st Grade - 2nd Grade

Mathematics

Focus on enhancing addition skills by practicing sums within 100 to challenge learners in improving arithmetic fluency. Completing exercises develops quick mental math abilities and a stronger foundation in basic arithmetic operations.

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2nd Grade

[Addition Strategies - Making Tens - Basic Arithmetic]

[Addition Strategies - Making Tens - Basic Arithmetic]

Lesson

[Addition Strategies - Making Tens - Basic Arithmetic]

2nd Grade

Mathematics

Emphasizing the "make a ten" strategy, this resource simplifies addition problems by helping learners break down sums into more manageable components. Mastery of this strategy leads to improved number sense and enhanced problem-solving skills in basic arithmetic.

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4th Grade - 5th Grade

[Adding and Subtracting Fluently - Key Vocabulary Mastery]

[Adding and Subtracting Fluently - Key Vocabulary Mastery]

Lesson

[Adding and Subtracting Fluently - Key Vocabulary Mastery]

4th Grade - 5th Grade

Mathematics

Gain proficiency in adding and subtracting whole numbers through mastering fundamental arithmetic skills. Build fluency in performing operations while developing an understanding of essential mathematical vocabulary. Enhance numerical proficiency and problem-solving capabilities.

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5th Grade - 6th Grade

Decimal Arithmetic - Adding and Subtracting - Multi-Digit Decimals

Decimal Arithmetic - Adding and Subtracting - Multi-Digit Decimals

Lesson

Decimal Arithmetic - Adding and Subtracting - Multi-Digit Decimals

5th Grade - 6th Grade

Mathematics

Learn the fundamentals of multi-digit decimal operations using the standard algorithm, focusing on accurately computing sums and differences. Enhance mathematical fluency and precision in adding and subtracting decimals.

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5th Grade - 8th Grade

Mathematical Techniques - Mental Math Operations - Arithmetic Strategies

Mathematical Techniques - Mental Math Operations - Arithmetic Strategies

Lesson

Mathematical Techniques - Mental Math Operations - Arithmetic Strategies

5th Grade - 8th Grade

Mathematics

Develop a mastery of mental arithmetic by focusing on the techniques of halving and doubling to boost efficiency in multiplication and division. Improve proficiency in mental calculations and enhance problem-solving strategies for swift and accurate arithmetic solutions.

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1st Grade - 2nd Grade

Numeracy Skills - Counting and Comparing - Basic Arithmetic

Numeracy Skills - Counting and Comparing - Basic Arithmetic

Lesson

Numeracy Skills - Counting and Comparing - Basic Arithmetic

1st Grade - 2nd Grade

Mathematics

Enhancing numeracy proficiency through mental math exercises centered on counting by twos, expanded form, and basic arithmetic operations. Learners will refine their skills in counting, comparing numbers, and performing addition fluently, thereby building a strong foundation in numeracy.

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2nd Grade

Addition and Subtraction Review - Basic Arithmetic - Mathematics

Addition and Subtraction Review - Basic Arithmetic - Mathematics

Lesson

Addition and Subtraction Review - Basic Arithmetic - Mathematics

2nd Grade

Mathematics

Engage with fundamental addition and subtraction challenges designed to strengthen arithmetic proficiency. Mastery of these mathematical operations will enhance accuracy in solving basic problems while boosting confidence in applying numerical skills to everyday tasks.

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Kindergarten - 2nd Grade

Basic Arithmetic - Addition and Subtraction - Mathematics Practice

Basic Arithmetic - Addition and Subtraction - Mathematics Practice

Lesson

Basic Arithmetic - Addition and Subtraction - Mathematics Practice

Kindergarten - 2nd Grade

Mathematics

Engage with practice questions designed to improve fundamental arithmetic skills, with a focus on addition and subtraction. Develop the ability to solve basic math problems efficiently, enhancing both calculation speed and accuracy.

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2nd Grade - 3rd Grade

Mental Arithmetic - Multiplication Word Problems - Real-World Applications

Mental Arithmetic - Multiplication Word Problems - Real-World Applications

Lesson

Mental Arithmetic - Multiplication Word Problems - Real-World Applications

2nd Grade - 3rd Grade

Mathematics

Engage in solving multiplication-based word problems designed to enhance mental arithmetic skills through practical scenarios. Apply multiplication principles to solve real-world problems, improving problem-solving abilities and numerical fluency.

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2nd Grade

Counting On - Mental Math Strategy - Basic Addition

Counting On - Mental Math Strategy - Basic Addition

Lesson

Counting On - Mental Math Strategy - Basic Addition

2nd Grade

Mathematics

Exploration of the core skill of counting on for mental addition begins with starting from the largest number. This enhances learners' mental math abilities, enabling them to perform efficient additions up to 20, aligned with standard KY.2.OA.2.

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4th Grade - 8th Grade

Reading Fluency - Speed, Expression, and Accuracy

Reading Fluency - Speed, Expression, and Accuracy

Lesson

Reading Fluency - Speed, Expression, and Accuracy

4th Grade - 8th Grade

English

Exploration of key components of reading fluency, emphasizing the integration of speed, expression, and accuracy to enhance reading skills. Learners will cultivate the ability to read with greater naturalness and effectiveness, gaining insight into critical elements that contribute to fluent reading.

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Kindergarten - 1st Grade

Addition Skills - Counting and Problem Solving - Basic Math Concepts

Addition Skills - Counting and Problem Solving - Basic Math Concepts

Lesson

Addition Skills - Counting and Problem Solving - Basic Math Concepts

Kindergarten - 1st Grade

Mathematics

Enhance skills in addition within the number 20 by focusing on counting and solving word problems with both 1-digit and 2-digit numbers. Develop the ability to accurately perform addition and apply this knowledge to real-world scenarios through engaging problem-solving activities.

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2nd Grade - 4th Grade

Number Rounding - Operations & Place Value - Number Sense

Number Rounding - Operations & Place Value - Number Sense

Lesson

Number Rounding - Operations & Place Value - Number Sense

2nd Grade - 4th Grade

Mathematics

Explore number rounding, addition, and multiplication to enhance understanding of number sense and place value. Gain skills in rounding numbers accurately, utilizing operations through place value methods, and expressing numbers in standard and expanded forms.

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3rd Grade - 4th Grade

Mental Calculations - Estimation and Multiplication - Numerical Proficiency

Mental Calculations - Estimation and Multiplication - Numerical Proficiency

Lesson

Mental Calculations - Estimation and Multiplication - Numerical Proficiency

3rd Grade - 4th Grade

Mathematics

Mental calculation skills are enhanced through exercises in estimation and multiplication, fostering proficiency in solving numerical sentences. Learners will develop the ability to swiftly estimate and compute products, boosting mathematical confidence and competence in practical scenarios.

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2nd Grade - 3rd Grade

Mathematical Operations - Addition and Subtraction of Doubles - Arithmetic Fundamentals

Mathematical Operations - Addition and Subtraction of Doubles - Arithmetic Fundamentals

Lesson

Mathematical Operations - Addition and Subtraction of Doubles - Arithmetic Fundamentals

2nd Grade - 3rd Grade

Mathematics

Focusing on mastering addition and subtraction of doubles, this content enhances foundational arithmetic skills. Learners will gain a clearer understanding of basic math operations and develop competency in solving simple mathematical equations.

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5th Grade - 6th Grade

Number Theory - Greatest Common Factor - Understanding Factors and Multiples

Number Theory - Greatest Common Factor - Understanding Factors and Multiples

Lesson

Number Theory - Greatest Common Factor - Understanding Factors and Multiples

5th Grade - 6th Grade

Mathematics

Enhance understanding and application of the Greatest Common Factor (GCF) in number theory by identifying factors to simplify fractions. Develop skills in critical problem-solving and mathematical reasoning.

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4th Grade - 6th Grade

Fractions Mastery - Sums and Differences - Mathematics

Fractions Mastery - Sums and Differences - Mathematics

Lesson

Fractions Mastery - Sums and Differences - Mathematics

4th Grade - 6th Grade

Mathematics

Explore the concepts of adding and subtracting fractions, providing opportunities for problem-solving to deepen understanding and fluency. Develop confidence in executing fraction calculations and apply these skills to resolve practical problems.

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4th Grade

Division Skills - Multiples of 10, 100, and 1,000 - Mental Math Strategies

Division Skills - Multiples of 10, 100, and 1,000 - Mental Math Strategies

Lesson

Division Skills - Multiples of 10, 100, and 1,000 - Mental Math Strategies

4th Grade

Mathematics

Enhancing problem-solving abilities through the development of mental math strategies, this focus on dividing multiples of 10, 100, and 1,000 by 1-digit numbers leads to improved accuracy and speed in calculations. Students will recognize patterns in division, strengthening their mathematical skills.

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