# ￼+10 and -10 for Grade 1 ... 1.NBT.5

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Common Core Standards
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￼+10 and - 10 for Grade 1 ... 1.NBT.5
Adding and Subtracting 10, Plus and Minus 10

These materials will help your students build towards +10 and -10 using mental math. The place value and number sense skills needed are all included in this set of items.

This unit is 100% CC Aligned to 1.NBT.5. It contains everything you need to teach students what they need to know to master this standard including:
- noticing patterns on the number grid
- modeling with base 10 blocks
- +10 "ladders" to build off of # grid
- modeling with equations
- sharing thinking in words and pictures
- games
- skill application in word problem
- worksheets perfect for homework and/or morning work
1.NBT.5: Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain reasoning used.

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26 pages
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