# 2.NBT.B.9 Worksheets, Workbooks, Lesson Plans, and Games

#### CCSS.MATH.CONTENT.2.NBT.B.9

:
"Explain why addition and subtraction strategies work, using place value and the properties of operations."

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

## Worksheets

Subtracting Ten and One on the Hundreds Chart
Worksheet
Subtracting Ten and One on the Hundreds Chart
Make your student number one with this worksheet full of subtraction fun using a hundreds chart.
Math
Worksheet
Subtract the 10s First! (Part One)
Worksheet
Subtract the 10s First! (Part One)
Your child will use a 10x10 number chart to subtract two digit numbers.
Worksheet
Subtract Ten or One to Get to One!
Worksheet
Subtract Ten or One to Get to One!
Travel through the hundreds chart on a quest to one.
Math
Worksheet

## Lesson Plans

Double Trouble: Subtraction Practice
Lesson plan
Double Trouble: Subtraction Practice
Double-digit trouble? No problem! Your students will practice their decomposing and regrouping skills in this lesson.
Math
Lesson plan
Big Spenders
Lesson plan
Big Spenders
Get ready to do some shopping! In this lesson, students will learn about subtracting 100 from multiples of 100 when making big purchases.
Math
Lesson plan
Building My Math Fluency
Lesson plan
Building My Math Fluency
Tap into students' metacognitive skills and get them to think about their thinking! This lesson encourages students to pay attention to the strategies they use while supporting math fluency!
Math
Lesson plan
Using Regrouping to Add
Lesson plan
Using Regrouping to Add
Guide students to use base ten blocks to solve two-digit by one-digit addition problems with regrouping. This lesson can be used independently or paired with the lesson Adding it All Up.
Math
Lesson plan

## Workbooks

No workbooks found for this common core node.

## Games

No games found for this common core node.

## Exercises

No exercises found for this common core node.

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