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Worksheet
Curated OER

Missing Addends

For Students 1st - 2nd
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the concept....
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PPT
Curated OER

Number Bonds to 10: Determine the missing addend

For Teachers K - 1st
Each slide contains a group of animals and an equation that adds up to 10. However each equation is missing a number, learners attempt to determine the missing addend to revile the number of animals hiding under the cloud. A fun,...
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Worksheet
Curated OER

Subtraction and Unknown Addends (to 20) - Matching Worksheet

For Students 1st
Piggies, puppies, dragons and other fantastical illustrations enable first graders to find the missing addends in a series of subtraction problems. After determining the unknown addend, pupils match the equations to the appropriate...
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Worksheet
Curated OER

Subtraction and Unknown Addends

For Students 1st - 2nd
A brief addition word problem has learners searching for the missing addend. They read about Mr. George, who already has five gallons of fuel in his car. Knowing the car can hold eleven gallons, they compute how many gallons he needs....
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Worksheet
Curated OER

Subtraction and Unknown Addends

For Students 1st - 3rd
Using images helps budding mathematicians grasp difficult subtraction concepts. For 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

Unknown Addends (to 20): Count the Blank Boxes

For Students K - 1st
By filling in the blank squares, learners complete five addition number sentences both visually and numerically. For each problem, a frame is filled with a certain number of images (turkeys, candles, etc.) and a certain number of blank...
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Worksheet
Curated OER

Addition With three Addends

For Students 1st - 2nd
Your class can use this worksheet to practice addition with three addends. Each of the 20 problems requires them to add 3 single digit number together to find a sum.
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Worksheet
Curated OER

Missing Addends: equal equations 3

For Students 1st - 2nd
Young mathematicians insert the missing addends to addition problems by making the equations equal on both sides of the equals sign. Students complete ten problems.
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Worksheet
Curated OER

Addition: Equation to 10 (Missing Addend)

For Students 1st - 2nd
Use this worksheet as a way to solve missing addneds up to 10. Learners are given base 10 blocks and make number sentences by completing 16 missing addend number sentences. The structure of each problem is similar to a factor tree and...
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Worksheet
Curated OER

Subtraction and Unknown Addends (to 20)

For Students 1st - 2nd
How many more gallons of fuel does Mr. George need to fill his car to capacity? This word problem uses the unknown addend strategy to get scholars subtracting and thinking about the relationship between mathematical operations. There is...
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Worksheet
Curated OER

Addition Grid

For Students 1st Standards
Which of these numbers add up to 20? Scholars find various addend pairs in a grid, circling those that add up to 20. There are many pairs they can find here, and the answer sheet offers some excellent kinesthetic practice ideas for...
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Worksheet
Curated OER

Subtraction and Unknown Addends

For Students 1st - 3rd
The missing addend strategy is helpful to young mathematicians approaching subtraction. This worksheet walks learners through the required steps, solving the problems with them. They examine situations with one addend and a sum provided,...
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Worksheet
Curated OER

Find the Missing Addend

For Students 1st
In this find the missing addend worksheet, 1st graders solve the equation by filling in the missing addend for 10 equations with addends from 0-9.
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Worksheet
Curated OER

Review of Addition Facts

For Students 1st
In this addition learning exercise, 1st graders write down the addends that make up 5 and 6. They match addition problems to the sums 5 and 6, and find the missing addends in 10 problems. They compare equations to 5 and 6 using the...
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Worksheet
Curated OER

Decomposing Numbers Step-By-Step

For Students 1st - 2nd
Here are two addition-related exercises. However, bear in mind, the explanations are featured below each of them. Use this as an all-class warm up, revealing the explanations if and when you see fit. First, examine the four sets of...
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Worksheet
Math Worksheets Land

Adding Objects in Rectangular Arrays - Matching Worksheet

For Students 1st - 2nd Standards
Each of these number sentences has a corresponding set of blocks, which will no doubt help your visual learners grasp multiple-addend addition. Learners examine the sentences and match them to their block representation. Consider also...
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Worksheet
Curated OER

Addition Properties

For Students 1st - 2nd Standards
Addition becomes much simpler once scholars understand its properties. They examine the commutative property through five equation pairs. For each, the addends have been switched and scholars must fill one in. The next six problems give...
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Worksheet
Curated OER

Addition: Three Addends

For Students 1st - 2nd
Learners add three single-digit addends to find their sums. There are 10 practice problems whose answers range from 0-10. 
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Worksheet
Curated OER

Making Addition Sentences True

For Students 1st - 2nd Standards
Introduce scholars to the commutative and additive identity properties of addition with two sets of practice problems. First, they fill in the missing addend by choosing from a group of three possible answers. These six addition...
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Worksheet
Curated OER

Math – Addition :3 Addends of 1-Digit with Doubles

For Students 1st - 2nd
In this addition practice instructional activity, students solve 12 problems that require them to add 1-digit numbers with 3 addends. Two addends in each of the problems are doubles.
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Worksheet
Curated OER

Adding Dice

For Students 1st - 2nd
Roll the dice! These addition number sentences are for beginning mathematicians, and each addend is displayed on a die. Learners add up two or three single-digit addends to find eight sums in the first half of this worksheet. Next, they...
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Worksheet
Curated OER

Missing Addends 2-5

For Students 1st - 2nd
In this missing addends worksheet, students fill in a missing addend to arrive at a given sum. Missing addends are numbers 2-5. A reference web site is given for additional activities.
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Worksheet
Curated OER

Adding Animals

For Students 1st Standards
Writing equations from images helps young mathematicians grasp addition, especially when they get to look at cute animals as they do it. There are six number sentences here, each illustrated with a set of animals corresponding to...
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Worksheet
Curated OER

Adding it Up!

For Students K - 1st Standards
These socks and towels each have three addends and are missing a sum; can your scholars figure it out? All addends are single-digit, however not all sums are. There are two examples done here, and once scholars have finished eight...

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