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Lesson Plan

Add and subtract by 100s by using a number line

teaches Common Core State Standards CCSS.Math.Practice.MP1
teaches Common Core State Standards CCSS.Math.Content.2.NBT.B.8
teaches Common Core State Standards CCSS.Math.Practice.MP8
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Big Ideas: When you add and subtract by 100 in your head, the 100s place increases or decreases. Students need to learn how to manipulate numbers mentally by building conceptual knowledge of the number system. By illustrating base ten concepts in various ways students will become more agile at adding. Special Materials: Wheel of Math spinner
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