Mentally Add/Subtract Using 10 and 100

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In our Mentally Add/Subtract Using 10 and 100s lesson plan, students learn how to easily add or subtract 10 or 100 to or from a number. Students practice using this skill, strengthening their mental math abilities.

Description

Our Mentally Add/Subtract Using 10 and 100 lesson plan introduces students to strategies they can use to add and subtract larger numbers with ease. The topic is introduced using charts, so students have a visual to aide their understanding. During this lesson, students are asked to work collaboratively to complete an activity in which they match pieces of addition and subtraction problems together to create correct equations. Students are also asked to independently complete practice problems in order to demonstrate their understanding of the lesson.

At the end of the lesson, students will be able to mentally add and subtract 10 and 100 using numbers from 0 – 999.

Common Core State Standards: CCSS.Math.Content.1.NBT.B.8, CCSS.Math.Content.2.NBT.C.5

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