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Worksheet
Curated OER

Using Addends and Sum/Using Subtrahend, Minuend, and Difference

For Students 2nd - 4th
What is an addend? What is a sum? Review this math terminology on the top half of the worksheet before practicing basic addition. 
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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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Lesson Plan
EngageNY

Sums and Differences of Decimals

For Students 6th Standards
Sometimes dealing with decimals is so much easier than dealing with fractions. The ninth lesson in a 21-part module has the class consider situations when it might be easier to add or subtract fractions by first converting to decimals....
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Worksheet
Curated OER

Adding Two Numbers

For Students 3rd - 4th
Keep addition drills interesting by varying the exercises. There are four separate sections here for youngsters to solidify their understanding of adding three-digit addends. First, they calculate eight vertically aligned equations,...
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Worksheet
Curated OER

Finding Missing Sums and Addends

For Students 3rd - 4th
In this sums/addends learning exercise, students find missing sums and addends in a set of 20 problems. Problems add 1 and 2-digit numbers. Answers included on page 2.
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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

Addition of Shape-Sums 10-18

For Students 1st - 3rd
You can add anything, so why not shapes? The class adds sets of different colored shapes, writing the addends and sums in the provided boxes. Tip: Have learners identify the colors and the shapes they are adding to build academic...
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Worksheet
Curated OER

Addition Practice

For Students 3rd - 4th
In this addition worksheet, learners practice their adding skills. Students are given twenty addition problems with missing sums or addends where learners are to find the missing numbers.
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Worksheet
Curated OER

Adding Up

For Students 1st - 2nd
Make addition visual in order to help beginners understand the concept. They add up beads on a string, examining an example before trying it on their own. Learners fill in addends and sums for these, and sometimes both. Although...
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Worksheet
Curated OER

Addition Word Problems - Two Addends

For Students 1st - 2nd
Find the sum for each of these 5 word problems. Learners add two numbers together to get an answer.
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Assessment
Illustrative Mathematics

Find the Missing Number

For Students 1st Standards
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
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Interactive
CK-12 Foundation

Decimal Addition: Adding Little Pieces

For Students 4th - 6th Standards
A five-question interactive test scholars' knowledge of adding and subtracting decimals. A tool aids in problem-solving with movable parts that reveal addends and sums. Question types include one discussion, fill and in the blank, and...
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Worksheet
Curated OER

Missing Addend With Sums of Ten

For Students 2nd - 3rd
For this addition worksheet, students find the missing addends which add up to ten. Students complete 32 problems filling in the missing digit for each.
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Lesson Plan
Illustrative Mathematics

$20 Dot Map

For Teachers K - 2nd Standards
Challenge the addition skills of young learners with this open-ended math problem. The task is simple, get from start to finish by connecting a series of three numbers. The trick is that the sum of the numbers must be less than or equal...
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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
Math Worksheets Land

Unknown Numbers in Sums and Differences

For Students 1st - 3rd Standards
You've hit the word problem jackpot with this set of 10 addition and subtraction scenarios! For each, learners have to find a missing number. Sometimes it is the sum or difference, and for others, an addend or minuend. For each, there is...
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Worksheet
Curated OER

Mystery Boxes

For Students 1st - 3rd
In this math worksheet, students solve the problems that use the operation of addition. They fill in the missing addends or sums as needed.
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Worksheet
Curated OER

Missing Sums and Addends

For Students 3rd - 4th
In this recognizing two-digit addition facts worksheet, students use a number line and addition facts to find the missing sums or addends in problems with and without regrouping. Students solve 20 problems.
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Worksheet
Curated OER

Missing Addends

For Students 2nd - 4th
In this missing addends worksheet, students solve 6 word problems where they are given 1 addend and the sum and must find the missing addend in order to solve each problem.
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Lesson Plan
Curated OER

Out of Sight Missing Addends

For Teachers 7th - 11th
Students explore solving missing addend problems. Using manipulatives, students solve addition problems. They create a picnic basket-shaped math journal and write a summary of their activities. Students write number sentence that match...
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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

Missing Sums and Addends

For Students 2nd - 3rd
In this missing addends worksheet, students fill in the missing sums and addends for the addition questions. Students solve 20 problems.
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Worksheet
Curated OER

Estimate Sums: Reteach

For Students 3rd - 4th
In this estimating sums worksheet, learners review two steps to help them estimate to find sums. Students then round each addend to the nearest ten and use the number line for help. Learners estimate the sums and write the numbers on the...
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Worksheet
Curated OER

Estimate Sums: Practice

For Students 3rd - 4th
In this estimating sums worksheet, students round each addend to the nearest ten and then estimate the sums. Students finish with one test prep question by estimating for the sum.

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