Activity
Teaching Treasures: Year One Timed Mental Math (Page 3) Activity
Teaching Treasures Publications

Teaching Treasures: Year One Timed Mental Math (Page 3)

For Students Pre-K - 1st Standards
Try to solve ten addition or subtraction problems in less than five minutes using this interactive worksheet. Immediate feedback is given. A suitable tool for use as a quick assessment.
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Unknown Type
Math Slice: Subtraction: Math Worksheets Unknown Type
Math Slice

Math Slice: Subtraction: Math Worksheets

For Students Pre-K - 1st Standards
This tool allows you to create worksheets where students solve subtraction equations at varying levels of difficulty.
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Unit Plan
Khan Academy: Subtracting 1s or 10s (No Regrouping) Unit Plan
Khan Academy

Khan Academy: Subtracting 1s or 10s (No Regrouping)

For Students 2nd Standards
Practice subtracting numbers less than 100.
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Whiteboard
Smart: Regrouping in Addition and Subtraction Whiteboard
SMART Technologies

Smart: Regrouping in Addition and Subtraction

For Teachers 2nd - 3rd Standards
An interactive lesson to help 2nd graders understand fair exchanges and how they apply to regrouping in addition and subtraction.
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Math Aids: Math Flash Cards Unknown Type
Math Aids

Math Aids: Math Flash Cards

For Teachers K - 1st Standards
Great resource to practice and strengthen math skills pertaining to a variety of operations. Math worksheets are printable, may be customized, and include answer keys.
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Activity
Beacon Learning Center: Trading Game Activity
Beacon Learning Center

Beacon Learning Center: Trading Game

For Students Pre-K - 1st Standards
Learners explore regrouping using place value blocks. Topics include regrouping ones, tens, and hundreds.
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