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This Reading Mama

Adding and Subtracting 100 Worksheets

By thisreadingmama 1 Comment

It’s time for some Adding and Subtracting 100 Worksheets!

Just like our Adding and Subtracting 10 Worksheets, I created these for my first grader a few years ago, and I’m finally getting around to sharing them with you!

Find all our free Addition and Subtraction Printables.

*The free download can be found at the END of this post! Click on the teal download button to snag the PDF.
**I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for me to earn fees by linking to Amazon.com and affiliated sites.

 

Adding and Subtracting 100 Worksheets

These six FREE worksheets are an easy and no prep way to reinforce adding 100 to and subtracting 100 from a number.

In this pack, you’ll find:

  • 2 Adding 100 Worksheets
  • 2 Subtracting 100 Worksheets
  • 2 Adding and Subtracting 100 Worksheets

My own first grader was struggling with mentally adding 100 to numbers, so I created these pages to help her organize the numbers by their value {hundreds, tens, ones} so she could visually see how adding or subtracting 100 changes a number.


If your learner is still struggling, a teacher tip is to add base ten blocks to your lesson so learners can manipulate adding and subtracting 100 from a number. This makes this activity multi-sensory, engaging learners’ ears, eyes. Having the blocks also makes an abstract math concept more concrete.

 

Thinking and Talking about Math

After solving the math problems, learners are encouraged to think and share verbally how adding or subtracting 100 changes the number. Which digit does it change? Why is that?

I love this step, and do not recommend skipping it!

This is when your learner gets to turn around and “be the teacher” to explain WHY it works the way it does.

This is KEY because learners might understand the “what” or even the “how” with math but not understand the “why.” And the “why” is what helps them move from a basic understanding to a deeper understanding that they can apply. Application is KEY with math concepts!

 

Click below to snag this free pack:

Enjoy teaching!
~Becky

 

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Filed Under: Math Activities Tagged With: AS

« Adding and Subtracting 10 Worksheets
You CAN Homeschool: Getting Started »

Comments

  1. Sri Potluri says

    October 31, 2021 at 6:53 pm

    Thank you so much for all the resources you are providing for parents. We understand how much effort goes into this . Appreciate your help.

    Reply

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Hi! I’m Becky, a homeschooling mama with 4 blessings who keep me on my toes {and knees}. Before homeschooling, I was a classroom teacher (M.Ed.) and reading tutor. Read more about me here.

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