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Lesson Plan
Curated OER

What's That Number? 1-Digit Addition and Subtraction

For Teachers 1st - 2nd
In this subtraction and addition worksheet, students fill in missing numbers in problems necessary to arrive at given answers. All problems use 1-digit numbers only.
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Worksheet
Curated OER

Make 19

For Students 3rd
In this addition worksheet, 3rd graders figure out and put in the missing numbers in 8 addition problems, so each of the sums in the boxes add up to 19. Students write down all the pairs of numbers with a total of 19 and solve 5...
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Worksheet
Curated OER

Subtraction: Fill in the Blank

For Students 1st - 3rd
For this subtraction practice worksheets, students use their problems solving skills to solve 25 problems that require them to fill in the missing numbers in the subtraction problems.
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Worksheet
Curated OER

Basic Subtraction Facts

For Students 1st - 2nd
In this finding the differences worksheet, students use a number line to help fill in the missing blanks in subtraction problems. Students solve 20 problems.
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Worksheet
Curated OER

Subtraction - Find the Missing Numbers

For Students 3rd
In this subtraction worksheet, 3rd graders find the missing numbers in 8 subtraction problems. They estimate the differences in 4 three and four digit subtraction problems before calculating each answer.
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Worksheet
Curated OER

Missing Numbers Subtraction (C)

For Students 1st - 2nd
In this addition and subtraction practice activity, students solve 24 problems that require them to write the missing numbers in the subtraction sentences.
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Worksheet
Curated OER

Missing Numbers and Writing Equations Practice

For Students 2nd - 3rd
For this equation and missing numbers worksheet, students fill in missing numbers in addition and subtraction problems to arrive at given answers, then complete a set of 3 word problems.
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Worksheet
Curated OER

Missing Numbers Addition

For Students 1st - 3rd
In this addition and subtraction practice worksheet, students solve 24 problems that require them to write the missing numbers in the addition sentences.
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Worksheet
Curated OER

Missing Numbers Addition (E)

For Students K - 2nd
In this addition and subtraction practice worksheet, students solve 24 problems that require them to write the missing numbers in the addition sentences.
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PPT
Curated OER

Number Bonds to 10: Game

For Teachers 1st - 2nd
Knowing number bonds that make 10 is a good way to build number sense and can help in solving basic addition and subtraction problems. Kids review number bonds, then play a game where they are given a number and try to shout out the...
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Worksheet
Curated OER

Addition: Number Bonds to 10

For Students 1st Standards
You have the answer and a variable, but something is missing! The class fills in the missing addend in 23 practice problems that all add up to 10. This is a great way to build number sense, pattern recognition, and automaticity.
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Worksheet
Curated OER

Making 10 Packs Worksheet

For Students 1st - 2nd
The soup factory is missing cans in its 10-packs! Scholars take on the challenge as they figure out how many more cans are required to complete these four 10-packs. Encourage them to draw the extra cans for added comprehension. It would...
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Lesson Plan
Curated OER

Pattern Puzzles

For Teachers 1st - 2nd
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
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Worksheet
Curated OER

What's Missing? (Fractions)

For Students 5th - 6th
In this mixed numbers learning exercise, students find the missing numbers, Students complete the learning exercise by finding the correct mixed number to make each of the sixteen problems correct.
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Worksheet
Curated OER

Add and Subtract Two-Digit Numbers

For Students 2nd
Learners complete two double-digit problems, one addition and the other subtraction. They also determine the missing addend in two additional problems. An explanation as to how to solve both problems is included. 
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Worksheet
Curated OER

Missing Numbers in Equations (B)

For Students 3rd
In this elementary algebra worksheet, 3rd graders identify the missing number in 32 subtraction equations. They find the value of each variable.
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Worksheet
Curated OER

Missing Digit Operations (L) Fill in the missing digits

For Students 4th
In this missing digit learning exercise, 4th graders fill in the missing number to the math problem. Students have to complete 30 problems where they have to figure out the missing number in the problem and the answer portion of each...
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Worksheet
Curated OER

Unit 15 Negative Numbers

For Students 6th - 8th
In this negative numbers worksheet, middle schoolers add and subtract positive and negative numbers.  They find the terms in a sequence, complete multiplication numbers, and find the missing numbers in given multiplication problems. ...
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Worksheet
Curated OER

Addition and Subtraction: Missing Numbers

For Students 1st - 2nd
For this addition and subtraction practice worksheet, learners solve 25 problems that require them to fill in the missing numbers in the problems.
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Worksheet
Curated OER

The Case of the Missing Numbers

For Students 1st - 3rd
In this finding the unknown numbers instructional activity, students help Detective Digit solve addition and subtraction problems, match the answers with letters, and find the name of the number thief. Students solve and match 16 problems.
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Worksheet
Curated OER

Math Worksheet: Subtraction With Missing Numbers

For Students 2nd - 4th
In this math subtraction worksheet, students solve 80 problems with double digit subtraction. There are blanks in each problem for filling in the missing numbers. Some regrouping is included.
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Worksheet
Curated OER

Subtraction and Unknown Addends

For Students 1st - 3rd
Using images helps budding mathematicians grasp difficult subtraction concepts. In this set of three word problems, they examine sets of objects which are reflected in each scenario. To approach subtraction in a more accessible way, the...
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Worksheet
Curated OER

Choose the Operation: Plus or minus (up to 100)

For Students 2nd - 4th Standards
Investigate the relationship between addition and subtraction as scholars fill in these number sentences, each of which is missing a symbol. Is it a subtraction or addition equation? There are 20 of these to start, all written...
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Lesson Plan
K20 LEARN

Building Numbers: Addition And Subtraction Up To 10

For Teachers 1st Standards
Animals on Board! Stuart J. Murphy introduces scholars to composed numbers in preparation for writing and drawing true or false number sentences. A game of Bear in the Cave challenges pupils to locate a missing addend. Sorting number...