結果 : how does addition help you subtract
7:27

Adding & Subtracting! | Mini Math Movies | Scratch Garden

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Simple rules to help you subtract POSITIVE and NEGATIVE numbers easily.

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Math Antics - Adding and Subtracting Fractions

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Grade 2: Math Lesson #82 Identifying and Writing Addition and Subtraction Fact Families

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Fact Family Triangles - Addition and Subtraction Cartoon | Math for 1st Grade | Kids Academy

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Adding and subtracting fractions with Math Grid | Step-by-Step Guide #maths #math #mathematics

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Addition and Subtraction Fact Families | EasyTeaching

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Addition and Subtraction Fact Families

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@Numberblocks- All the Sums | Learn to Add and Subtract

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Word Problems—Add or Subtract? | MightyOwl Math | Kindergarten

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Subtraction for kids - Learn how to subtract - Mathematics for kids -

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