1.NBT.C.5 Worksheets, Workbooks, Lesson Plans, and Games

"Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used."

These worksheets, games, and lesson plans can help students practice this Common Core State Standards skill.


Hundreds Chart Challenge
Patterns: Driving in All Directions

Lesson Plans

Math Mind Magic
The Ten Monster


No workbooks found for this common core node.


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