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These word problems can introduce or reinforce teaching of change unknown word problems which is a Common Core standard in first and second grade. If possible, use snowman manipulatives and a part-part whole mat to help students solve the equations. The addition sign is missing because I had the stu
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FREE
28 Ratings
4.0

PDF (319.71 KB)

After teaching word problems for a couple of years, I noticed that students see word problems as a very abstract process. When given a word problem, students often choose an operation and solve. It seems like they have little understanding/reasoning on how and why they chose that specific way to sol
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\$4.75
68 Ratings
3.9

PDF (1.89 MB)

Change Unknown addition word problems pack - TEN different word problems activity sheets for change unknown problems to 10. On each word problem sheet, students represent the problem by drawing a picture, solving it on a number line, making a ten frame, writing a number sentence for the problem, and
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\$3.00
81 Ratings
4.0

PDF (358.4 KB)

BUNDLE AND SAVE!!!! 330 page set!! On sale for \$15 for a limited time. This set includes this product and 22 other story problem products! 11 Different Story Problem Types. Bought separately would cost \$33.00!! Common Core Standards require students to know how to solve many different types of wo
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\$1.50
40 Ratings
4.0

PDF (3.89 MB)

The word problems in this resource are all “Change Unknown” problems with sums within 20. They are presented on Think Boards, great graphic organizers that outline different strategies that may be used to solve the problem. Armed with the knowledge and experience of using a variety of strategies, t
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Also included in: Addition Word Problems Sums within 20 Bundle

\$3.50
71 Ratings
4.0

PDF (23.61 MB)

Change Unknown subtraction word problems pack - TEN different word problems activity sheets for change unknown problems to 10. On each word problem sheet, students represent the problem by drawing a picture, solving it on a number line, making a ten frame, writing a number sentence for the problem,
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\$3.00
57 Ratings
4.0

PDF (357.59 KB)

BUNDLE AND SAVE!!!! 330 page set!! On sale for \$15 for a limited time. This set includes this product and 22 other story problem products! 11 Different Story Problem Types. Bought separately would cost \$33.00!! Common Core Standards require students to know how to solve many different types of wo
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\$1.50
14 Ratings
4.0

PDF (4.37 MB)

These change unknown (missing addend) story problems were created to be used for differentiating with in kindergarten, first grade, and second grade classrooms (29 pages in all). I have made 2 or 3 copies of each problem to differentiate with a similar problem. (First problem includes the equation
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CCSS:
\$3.00
\$1.50
43 Ratings
3.9

PDF (10.29 MB)

Teach your students to solve and differentiate between change, start and result unknown addition problems. These number story cards use names and objects that your young students should be able to sound out, so they don’t get caught up trying to read the problem and can get straight onto solving th
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\$3.00
39 Ratings
4.0

PDF (1.77 MB)

BUNDLE AND SAVE!!!! 330 page set!! On sale for \$15 for a limited time. This set includes this product and 22 other story problem products! 11 Different Story Problem Types. Bought separately would cost \$33.00!! Common Core Standards require students to know how to solve many different types of wo
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\$1.50
31 Ratings
4.0

PDF (4.15 MB)

The word problems in this resource deal with addition sums within 10 and are all “Change Unknown” problems. They are presented on Think Boards, great graphic organizers that outline different strategies that may be used to solve the problem. The strategies used are: ‘Draw a Picture’, ‘Use a Number L
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Also included in: Addition Word Problems Sums within 10 Think Boards Bundle

\$3.50
27 Ratings
4.0

PDF (17.76 MB)

This pack of 8 cut & paste activities is the perfect supplement to first grade Engage New York curriculum. This pack is centered around the concept of change unknown subtraction. These hands-on activities enable students to practice this skill and reinforce the use of strategies for subtractio
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\$3.50
22 Ratings
4.0

PDF (1.29 MB)

These change unknown (missing addend) story problems were created to be used for differentiating with in kindergarten, first grade, and second grade classrooms (29 pages in all). I have made 2 or 3 copies of each problem to differentiate with a similar problem. (First problem includes the equation 4
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\$2.99
26 Ratings
3.8

PDF (10.3 MB)

These change unknown (missing addend) story problems were created to be used for differentiating with in kindergarten, first grade, and second grade classrooms (29 pages in all). I have made 2 or 3 copies of each problem to differentiate with a similar problem. (First problem includes the equation
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\$3.50
25 Ratings
3.9

PDF (10.31 MB)

Addition Word Problems - Grade 2 (Change Unknown) 2.OA.1 This product includes 8 addition word problems (change unknown). These are great for the beginning of 2nd grade when students are learning how to solve different types of word problems. You can use these for guided practice, collaborative wo
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\$2.00
19 Ratings
3.9

PDF (7.17 MB)

The word problems in this resource deal with subtraction sums up to twenty. They are all “Change Unknown” problems. They are presented on Think Boards, a device that suggests different strategies to use to solve the problem. Armed with the knowledge and experience of using a variety of strategies,
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Also included in: Subtraction Word Problems Think Boards Bundle

\$3.50
19 Ratings
4.0

PDF (15.16 MB)

I created these story problems to practice finding a bigger unknown story problems. These word problems teach and practice skills for solving word problems. I have included 3 sets of word problems. I also included a how to teach page. Ways to use these word problems: • In a Math Center – Enough
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\$2.50
8 Ratings
4.0

PDF (690.32 KB)

Ever wish your students would read word problems multiple times to understand and solve the problem? This collection of 10 change unknown common core story structure addition and subtraction word problems are on a graphic organizer that uses close reading strategies. Students read the word problem
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\$4.00
14 Ratings
4.0

PDF (734.51 KB)

These addition word problems within 20 target the CCSS problem type "add to: change unknown" also know as join: change unknown (JCU) in Cognitively Guided Instruction (CGI). They are a perfect way to monitor your student's success with this particular skill. Great for classroom teachers respons
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\$2.50
13 Ratings
4.0

PDF (11.6 MB)

In need of a subtraction math center?? These fun and friendly subtraction task cards are perfect for additional practice with word problems and regrouping. This file includes:16 three-digit subtraction word problems with regrouping14 recording sheets/worksheetsCheck out some other products: Subtract
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CCSS:
\$3.50
12 Ratings
4.0

PDF (2.9 MB)

BUNDLE AND SAVE!!!! 330 page set!! On sale for \$15 for a limited time. This set includes this product and 22 other story problem products! 11 Different Story Problem Types. Bought separately would cost \$33.00!! Common Core Standards require students to know how to solve many different types of wo
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\$1.50
11 Ratings
4.0

PDF (3.82 MB)

These subtraction word problems within 20 target the CCSS problem type "take from: change unknown" also know as seperate: change unknown (SCU) in Cognitively Guided Instruction (CGI). They are a perfect way to monitor your student's success with this particular skill. Great for classroom teacher
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\$2.50
11 Ratings
4.0

PDF (8.95 MB)

This is a smart-board activity where students can work out word problems with start and change unknowns. There are bunnies that can be moved into the grass and they can be moved to hop away. Students enjoy working out the answer on the board. Word problems can be changed to high numbers for highe
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\$5.00
4 Ratings
4.0

NOTEBOOK (262.76 KB)

This packet includes a "Separate Change Unknown" thinking pattern poster, story problems, matching part, part, whole mats, number lines, triangle/fact family cards, and equations. This would be a great station. Students read the problems, then match the mat, number line, and equation to the corres
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\$3.00
6 Ratings
4.0

PDF (2.94 MB)

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