Wednesday, July 19, 2023

FREE MATH LESSON - “Changing Numbers K-2 Number Sense & Simple Fluency Assessment/Activity”

by Math Viking
Kindergarten - 2nd Grade

Changing Numbers From MATH PERSPECTIVES by Kathy Richardson. Assess and develop number sense in your kindergarteners, first graders and second graders with this simple activity. This includes a level II section for changing within units to assess emerging levels of place value understanding.

“Changing Numbers is the understanding that we either add to or take away from one number to make another number and knowing how much to add or take away.

At the most concrete level, use actual counting toys. Next, move to tiny ten frames, (Rekenreks are awesome too) and finally, replace with place value blocks.

During small group time, ask students to show 6. Then say a new number, such as 8, and ask students if they would need to add to their number or take away from it. After they respond, have them change their number to the new number. Continue this same process with additional numbers. 

6 Pages of simple number changes (place in page protectors to write/wipe)
4 Level II pages including ten frames
Free sample of tens/ones subitizing cards from the PLACE VALUE BAKERY Number Sense and Unitizing Packing: Cookies Tens and Ones

Please take a second to review this freebie for me! And be sure to check out the rest of the Place Value Bakery Line!

Thank you for exploring math with me!
Math Viking

Follow me for notifications about awesome new products, offered at 50% OFF for the first 48 hours! All of my products are math coach approved!

To emphasize PROBLEM SOLVING with actual thinking: Go Numberless!:
Grade 2 Standards Numberless Word Problems to Sort & Solve
Grade 1/Early 2 Numberless Word Problem Sort & SolveGrade 3 Numberless Sort & SolveNumber Composition
Shake, Spill & Show: At the Bakery

THE BIG MOVE From Number Composition to Unitizing
Addition and Subtraction Sorts: Composing Numbers 12 Sorting ActivitiesFor Emerging Place Value Understanding:PLACE VALUE BAKERY Number Sense and Unitizing Packing: Cookies Tens and OnesPart Whole Model PLACE VALUE BAKERY Task Cards First & Second Grade

Place Value Fun & Depth of Understanding for one of the BIGGEST standards we teach!
MYSTERY NUMBER Place Value Freebie!
MYSTERY NUMBER Scoot Task Cards for Place Value, Reasoning & Vocabulary

For DOUBLES FACT Fluency Assessments, Games, Interventions & Enrichment check out:

For MATH OLYMPICS check out:
COMPLETE MATH OLYMPICS EVENT PACK: Games, Certificates, Posters & Google Doc
Math Olympics Kindergarten Race to 10 or 20 and Build a Tower
Math Olympics Shake & Spill
Math Olympics Version of Flexible Place Value Task Cards

Click HERE to FOLLOW ME and be the first to know about my new freebies and 50 % Off New Product Launches!

How to Get TPT credit to use on future purchases:
Please go to your My Purchases page (you may need to login). Beside each purchase you'll see a Provide Feedback button. Simply click it and you will be taken to a page where you can give a quick rating and leave a short comment for the product. Each time you give feedback, TPT gives you feedback credits that you use to lower the cost of your future purchases. I value your feedback! If you find something that requires correcting or improving prior to leaving feedback, please email me:

All rights reserved by The Math Viking© Copyright Information: Purchase of this unit entitles the purchaser the right to reproduce this pack for ONE classroom use only. If you plan on sharing with others, please purchase an additional license. Thank you!!

Adorable Bakery graphics by

Join The Best of Teacher Entrepreneurs Marketing Cooperative at
and get THOUSANDS OF PAGE VIEWS for your TpT products!

Go to for even more free products!