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Worksheet
Curated OER

Addition Word Problems Up to 20

For Students K - 1st
Because this addition word problem has the answer written on the same page, consider using it as a warm-up and projecting it. Simply cover up the answer until you're ready. The problem has beginners adding up two single-digit numbers for...
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Worksheet
Curated OER

Add and Subtract within 20

For Students 1st - 2nd
The sums and differences only reach 20 in this arithmetic worksheet. Scholars answer 10 simple number sentences, some involving two numbers and others with three. They choose the correct answer from a list on the right. There are the...
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Worksheet
Curated OER

Addition of Numbers (Under 100)

For Students 1st - 2nd
Here's some basic practice adding single and double-digit numbers in three different formats. First, learners complete two horizontal addition equations. Then, they find the sum for two vertical addition problems. Finally, scholars...
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Worksheet
Curated OER

Butterflies and Addition Sentences Worksheet

For Students K - 2nd
These butterflies need some color! Learners solve each of the nine single-digit addition problems to discover what color each butterfly will be according to the color key. The sums are between 1 and 10, and not all numbers will be used....
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Worksheet
Curated OER

Colors That Make 10 Worksheet

For Students K - 1st
Only the clouds that make 10 should be colored in this visual activity for young mathematicians. They examine 12 clouds with addition problems (all single-digit addends), coloring only the ones with a sum of 10. There are five here that...
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Worksheet
Math Worksheets Land

Add up to Four Two-Digit Numbers - Step-by-Step Lessons

For Students 1st - 2nd Standards
Okay, so your scholars are excelling at two-addend addition problems, but what about three or four? Here are some practice problems to stretch their math skills. They find the sums of six equations: two with two addends, two with three...
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Lesson Plan
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Curated OER

Sum of Even and Odd

For Teachers 9th - 12th Standards
Your algebra learners will make use of structure and manipulate expressions involving function notation using the definition of odd and even functions. They then advance even further to analyze the structure in a system of two equations.
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Assessment
Illustrative Mathematics

Making 22 Seventeenths in Different Ways

For Students 4th Standards
There is more than one way to determine a sum. Scholars demonstrate their understanding of the decomposition of fractions similar to the decomposition of whole numbers. The short task requires pupils to determine which sums of fractions...
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Worksheet
K12 Reader

Sum Difference

For Students 2nd - 3rd Standards
If you need a way to address math and reading in one lesson, look no further than a passage about inverse operations, complete with reading comprehension questions. Kids focus on context clues to determine the meanings of unfamiliar words.
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Lesson Plan
EngageNY

An Application of Linear Equations

For Teachers 8th Standards
Just how far will the Facebook post go? Lead a discussion on how to manipulate the sum of a geometric series to figure out a formula to find the sum at any step. The plan contains an alternative to the discussion with more accessible...
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Interactive
Arcademics

Hungry Puppies

For Students 5th - 6th Standards
It all comes down to the treats. Individuals compete to find decimals' addends to arrive at a given sum. Pupils click on two dog treats with values that add to the target number. Each round contains the same sum and lasts a minute, and...
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Lesson Plan
Curated OER

The Sum of Our Integer Intelligences

For Teachers 7th - 8th
Young mathematicians explore integers. They review adding integers through engaging in mathematical labs. Each lab station is designed to reflect one of the multiple intelligences. Resources for all activities are provided.
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Assessment9:45
Mathed Up!

Angles in Polygons

For Students 8th - 10th Standards
Show your class that finding angle measures is a regular calculation with a resource that provides 12 problems dealing with the measures of angles in regular polygons. Pupils use formulas for the sum of measures of angles in a polygon to...
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Lesson Plan
EngageNY

Solving Problems by Finding Equivalent Ratios

For Teachers 6th Standards
Combine total quantities and equivalent ratios in problem solving. The fifth lesson in a series of 29 presents problems that can be solved using equivalent ratios. Pupils use part-to-part ratios and either sums or differences of the...
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Interactive
CK-12 Foundation

Volume by Disks: The Vase Case

For Students 11th - Higher Ed
Finding the volume is an integral characteristic of a vase. Using the idea that summing the areas of cross-sectional disks will calculate the volume of a rotational solid, pupils find the volume of a vase. Scholars determine the interval...
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Interactive
Arcademics

Spider Match

For Students 6th Standards
Create a web of integers. Individuals play an online game as spiders. Pupils find two integers with a sum to a target number displayed in the center of a web. The player with the most combinations at the end of the time wins.
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Lesson Plan
Curated OER

Triangle Sums

For Teachers 4th
Fourth graders determine a way to place numbers in the nine circles that are arranged in a triangular pattern so that each side has an equal sum. They use each number once and practice adding single digit numbers.
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Worksheet
Curated OER

Math 155 Worksheet 11

For Students Higher Ed
In this college level calculus learning exercise, students use Riemann Sums to evaluate the given integrals and compare the answer to the limit.  The two page learning exercise contains four problems.  Answers are not provided. 
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Worksheet
Curated OER

Show What You Know: Estimate: Enrichment

For Students 4th - 5th
In this estimating sums worksheet, learners write a greater than or less than sign to solve the addition sentences. Students first use estimation to help them compare the numbers.
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Worksheet
Curated OER

Worksheet 8 - Spring 1996

For Students 11th - Higher Ed
In this math worksheet, students sketch the graphs of the functions 1/x 2 and 1/(x2 − 1) over the interval [2, ∞). They rewrite the series using the Riemann sum.
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Worksheet
Curated OER

What Do You Think?

For Students 2nd - 3rd
For this estimating sums and differences worksheet, learners solve 6 problems in which the answer to a 3 digit addition or subtraction problem is estimated. Students then solve the problem for an exact answer. There will be carrying and...
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Worksheet
Curated OER

Sums of Angles in Polygons

For Students 5th - 6th
In this angles in polygons worksheet, learners calculate the sum of internal angles in 2 polygons, and solve for x in an additional 2. A reference web site is given for additional activities.
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Worksheet
Curated OER

What's the Sum?

For Students Pre-K - K
In this math worksheet, students read a poem called "What's the Sum?" Students complete the poem by adding one-digit numbers in each stanza.
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Worksheet
Curated OER

Area, Riemann Sums and Summation Notation

For Students Higher Ed
In this math instructional activity, students solve four problems written in sigma notation. They use Riemann sums to find the areas in four problems involving rectangles. Students work in groups to compute the Riemann sum approximations...

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