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Lesson Plan
ReadWriteThink

Read Write Think: Draw a Math Story From the Concrete to the Symbolic

For Teachers Pre-K - 1st Standards
Contains plans for four cross-curricular lessons that ask students to write simple addition and subtraction stories after reading a number of models. In addition to objectives and standards, this instructional plan contains links to PDF...
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Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Add and Subtract Ten on a Number Line [Pdf]

For Students 1st - 2nd Standards
Students will roll a die and follow the directions to explore adding and subtracting on a number line.
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Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: True or False [Pdf]

For Students 1st - 3rd Standards
Students determine which addition and subtraction equations are true and false and place them under the correct place.
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Unit Plan
Scholastic

Scholastic: Study Jams! Math: Addition and Subtraction: Without Regrouping

For Students K - 1st Standards
Solve word problems with addition and subtraction without regrouping. Then test your knowledge.
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Unit Plan
Scholastic

Scholastic: Study Jams! Math: Addition and Subtraction: Additon With Regrouping

For Students K - 1st Standards
Solve problems step by step by addition with regrouping.
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Unit Plan
Scholastic

Scholastic: Study Jams! Math: Relate Adding, Subtracting

For Students 1st - 4th Standards
Watch a short video on the relationship between addition and subtraction then assess your knowledge with practice questions.
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Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Picking Signs

For Students Pre-K - 1st Standards
Chose which sign addition or subtraction completes the expression. Click "How to do this" for further instructions.
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Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Kids' Subtraction Quiz

For Students Pre-K - 1st Standards
Practice subtraction skills for numbers 1 to 9 with this interactive assessment. Click check my answers to verify answers and do it again to practice more.
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Activity
Mr. Martini's Classroom

Mr. Martini's Classroom: Subtracting With Multiple Choices Math Facts

For Students Pre-K - 1st Standards
Practice subtraction facts 4 to 9 with this interactive multiple choice activity.
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Unit Plan
AAA Math

Aaa Math: Subtraction

For Students 1st - 8th Standards
This tutorial focuses on basic subtraction, subtraction facts, subtraction skills, subtraction of fractions and subtraction of positive and negative integers. Features include practice exercises and games.
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Interactive
Math Slice

Math Slice: Math Millionaire

For Students 1st - 5th Standards
Answer only 15 questions to become a Math Millionaire when you play this interactive game that focuses on a variety of math skills. An engaging, fast paced, and fun way for learners to review math concepts. Answers are checked immediately.
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Handout
Math Is Fun

Math Is Fun: Equal, Greater, or Less Than

For Students 1st - 8th Standards
Find definitions of the equal, not equal, less than, and greater than signs, as well as information what you are supposed to do with them and how they are used in general math and in algebra.
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Unknown Type
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Elementary Addition

For Students Pre-K - 1st Standards
This resource offers six brief arithmetic lessons: sums less than ten, sums of ten, and sums between ten and twenty, doubling, zero, and a set of general practice problems.
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Activity
Math Is Fun

Math Is Fun: Word Questions: Elementary Subtraction

For Students Pre-K - 1st Standards
Simple word problems challenge your subtraction skills. If you get stuck, use the clues and the number line for help.
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Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation

For Students Pre-K - 1st Standards
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
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Activity
K-5 Math Teaching Resources

K 5 Math Teaching Resources: Equal Sums [Pdf]

For Students 1st - 2nd Standards
Students draw two cards and determine if the number sentences on them have equal sums.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 1.oa Using Lengths to Represent Equality

For Teachers 1st Standards
For this lesson plan, 1st graders determine if lengths are equal to one another.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 1.oa Valid Equalities?

For Teachers 1st Standards
This lesson plans allows students to explore the meaning of the equal sign in addition and subtraction problems.
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Unit Plan
Khan Academy

Khan Academy: Equal Sign

For Students K - 1st Standards
Practice telling which equation is true. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Handout
Cool Math

Coolmath: Coolmath4kids: Yardstick Subtraction

For Students 1st - 2nd Standards
Demonstrates how to use a yardstick as a number line for simple subtraction.
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Interactive
Fun Brain

Fun Brain: Math Baseball

For Students Pre-K - 1st Standards
Subtraction with numbers less than five is investigated in this math resource. Players answer subtraction problems to score runs.
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Unit Plan
Khan Academy

Khan Academy: Find Missing Number (Add and Subtract Within 20)

For Students K - 1st Standards
Learn how to solve problems like "___ - 7 = 18" where you don't know one of the values in an addition or subtraction equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Equality Number Sentences

For Teachers 1st - 2nd Standards
Students will compare the number of circles in two boxes. If they are equal, they will write a number sentence. Explanations and examples are included.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Find the Missing Number

For Teachers 1st - 2nd Standards
Students will solve addition and subtraction equations with different structures so that they are able to see the connections between addition and subtraction more easily.