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Number Strings is the same concept as multiple addends (Operations of Algebraic Thinking). In number strings, however, students are asked to consider three strategies when making connections; ways to make 10, doubles facts, and near doubles. When students are aware of these strategies, they will bec
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4.0

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"Begin with the number of wheels on a bus. Add the number of legs on a spider. Subtract the number of sides of a square." This is one example of a number string that can be given as a warm-up or wrap-up activity. I purchase 3.5 x 5 spiral notebooks and have students place a label on an index car
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\$2.00
27 Ratings
3.9

PDF (381.75 KB)

If your students need practice with number strings, you will really enjoy this game. Formatted in a "Simon Says" way, Super Simon asks students to build a number string containing 3-4 numbers. Be careful though, you can only add numbers that "Simon" tells you to. It is as much a listening game as
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21 Ratings
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This is a set of 24 QR code task cards aligned to the common core standards: CCSS.Math.Content.1.OA.C.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. CCSS.Math.Content.2.OA.B.2 Fluently add and subtract within 20 using mental strategies Students will n
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19 Ratings
4.0

PDF (18.42 MB)

This number strings pack includes: * 9 worksheets on simple number strings. *Meets Common Core Standards: CCSS 2. NBT. B.6 *4 review worksheets including telling time, money, number strings, and skip counting
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\$2.00
17 Ratings
4.0

PDF (566.1 KB)

Included in this download are 4 number string worksheets, a student friendly instruction and example page that can be cut and glued in their notebooks, and a Race the Calculator game. These activities allow students to work on their fluency with adding numbers and using mental strategies.
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11 Ratings
4.0

PDF (1.63 MB)

This Double Digit Number String Card set includes 60 cards with addition equations of 3 and 4 double digit numbers. This is great for math centers, small groups, partners (beat the calculator), and more!
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11 Ratings
4.0

PDF (5.64 MB)

A great practice sheet for number strings. Use it as practice or an assessment. Created by Tessa Bromiley
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10 Ratings
4.0

PDF (18.31 KB)

Updated set coming soon! Student engagement is one of the most important things. These centers help keep students engaged and excited about practicing their math. All activities meet Common Core standard 2.NBT.6. Activities Include: - Number String BINGO - Number String Spin an Equation - Num
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8 Ratings
4.0

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Encourage your students to use known combinations to solve problems with adding multiple addends. Simply, use a dice to roll numbers to create a number string. Then, students will look at the whole problem and use what they know, such as combinations that make ten, doubles, or other familiar combin
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8 Ratings
4.0

PDF (7.31 MB)

This set of measurement number strings is 7 pages in length with a set of directions, a conversion chart, and 8 different number strings designed to build mental math capabilities.
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3 Ratings
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This is great game for students to practice adding up 3 numbers. It can be used as a Daily 3 Math choice - math by self - or it can be used whole class to practice number strings.
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3 Ratings
3.8

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This set of number strings includes directions for how to use number strings, 10 three step number strings that use information from dice, cards, and basic items like facial features or pairs of shoes, and a cover page. Number strings are mental math activities that help student to develop number s
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2 Ratings
4.0

ZIP (1.39 MB)

This resource gives you 60 different multiplication number strings that you can use during your daily number talk activities. Different multiplication strategies are highlighted throughout the number strings to strengthen your students mental math skills. Multiplication problems with a variety of di
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\$4.50
2 Ratings
4.0

PDF (18.19 MB)

This can be an end of the year 3rd grade activity or beginning 4th grade activity. You can utilize this activity in two different ways: scavenger hunt where the kids hunt for the answers around the room or math station activity. The number strings are meant to be mental math, but I have provided
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1 Rating
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Working on number strings is a great way to teach your students to look for 'friendly tens' and practice mental addition. You'll get two practice sheets and a quiz with this purchase. I've also included an answer key.
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1 Rating
3.0

ZIP (120.24 KB)

These are a great spiral review for my 2nd graders. They look for ways to make 10, doubles facts, and near doubles to help them solve these number strings. These are great to review on the document camera and have multiple kids share their strategies too!
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1 Rating
3.5

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20 Christmas Addition Task Cards. Students use Make 10 combinations to add problems with 3 addends. Great addition practice for first and second grade. Use as a math center, for early finishers, or in math groups. You can play SCOOT or use these as a Write the Room activity,Comes in BW and color opt
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\$3.00
1 Rating
4.0

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The Common Core State Standards in Mathematics advocates for developing strategies for solving computational problems mentally. Number Strings are a set of number related clues that solve a computation problem. Students listen to the clues and arrive at a solution. Then the student shares the answe
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28 Ratings
4.0

PDF (1.39 MB)

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One of the chief critiques I have heard about math instruction is that our students know all about how to do a procedure; they just don’t know when it applies. This is an activity that tries to correct this by having students cut out 15 different number strings of 3, 4 and 5 numbers (all single digi
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This resource gives you over 40 different addition number strings that you can use during your daily number talk activities. Different addition strategies are highlighted throughout the number strings to strengthen your students mental math skills. Addition problems with a variety of difficulty are
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This resource gives you over 50 different subtraction number strings that you can use during your daily number talk activities. Different subtraction strategies are highlighted throughout the number strings to strengthen your students mental math skills. Subtraction problems with a variety of diffic
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This resource gives you over 40 different division number strings that you can use during your daily number talk activities. Different division strategies are highlighted throughout the number strings to strengthen your students mental math skills. Division problems with a variety of difficulty are
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