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Instructional Video
Math Mammoth: A Mental Math Trick: Addition With Nine and Eight Instructional Video
Math Mammoth

Math Mammoth: A Mental Math Trick: Addition With Nine and Eight

2nd - 3rd Standards
Learn a simple trick to help you add 9 or 8 to a number quickly, and how this can work with larger numbers ending in 9 or 8 as well. [8:59]
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