Curated OER
What Is the Sum?
In this finding the sum worksheet, students count objects written with a plus sign, add their numbers, and record the total amount for each set of problems. Students solve 8 problems.
Curated OER
Sum It Up!
Young scholars practice addition facts. In this math lesson, students play "Sum it Up" in order in increase their speed in recalling their addition facts.
Curated OER
Missing Addend - sums with 6 and 7
In this missing addend worksheet, 2nd graders complete the missing numbers to addition problems where sums are between 6 and 7 where the numbers are represented by cubes. Students complete 16 problems.
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Missing Addends-Sums With 6 and 7
In this missing addend worksheet, students fill in missing numbers above pictures of blocks. Each problem has a sum of either 6 or 7. A reference web site is given for additional activities.
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Missing Addend Sums With 8 and 9
In this addition worksheet, students complete problems with sums of eight and nie. students solve 12 problems, solving for the missing addend in each.
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Addition with sums to 10
In this addition worksheet, students add one digit numbers with sums up to 10. Students complete 12 addition problems.
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Addition with Sums to 20
For this addition practice worksheet, students solve 15 problems that require them to add 2-digit numbers to 1-digit numbers with sums to 20.
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Sums
For this addition worksheet, students add two-digit vertical numbers with some regrouping to find the sums. Students solve twelve problems.
Improving Measurement and Geometry in Elementary Schools
The Sum of the Interior Angles of a Polygon
Junior geometers discover that polygons can be decomposed into triangles and that the number of triangles can be determined by a rule. Note that the Geometer’s Sketchpad® software is required to carry out all components of this...
Curated OER
Addition - Sums to 9 (3 of 3)
Simple summation skills are the meat and potatoes of future arithmetic skills. Use this worksheet to provide practice for your first graders when adding single digits. Answers are provided by the click of a box at the top of the page,...
T. Smith Publishing
St. Patrick's Day Addition (Sums to 100)
In this Irish-themed math worksheet, your leprechauns solve 20 problems. All of them involve two-digit numbers added to two-digit numbers and require regrouping. Learners write their answers in a shamrock on the page which has a St....
Curated OER
Sum It Up
After a review of the steps involved in writing a summary, class members read The Physics of Baseball by Sarah Ives and use a story web to identify the important details to include in their summary. Class members then choose an article...
Curated OER
Addition Properties
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...
DK Publishing
Adding Fractions
Fractions can be tricky, so be sure any independent practice worksheets you assign guide scholars through steps like this one. There are two examples showing mathematicians how to add fractions and reduce the answer to simplest terms....
Curated OER
Triangle's Interior Angles
Given a pair of parallel lines and a triangle in between, geometers prove that the sum of the interior angles is 180 degrees. This quick quest can be used as a pop quiz or exit ticket for your geometry class.
Curated OER
Sum of Exterior Angles of Polygons
Have fun calculating angles for different polygons. The class differentiate the relationship between the interior and exterior angles of polygons. They discuss linear pair as it related the polygons and their angles. This is done as they...
Curated OER
Betweenness and the Sum of Parts
High schoolers differentiate lines and angles using betweenness in this geometry lesson. They differentiate angles and lines using Cabri Jr. and analyze the data and make conjecture.
Curated OER
Summing Up the Disaster
Students are introduced to news writing being a concise, factual, and informative type of writing. They assess that publishing an article in a newspaper style utilizes a word processing program. Each student researches the Titanic and...
Curated OER
Colorful Partners
In this addition worksheet, students study a 25 square grid with addition problems. Students color sums of 7 red, sums of 8 blue and sums of 9 green.
Curated OER
Addition Worksheet
In this addition worksheet, students will determine the sum of 20 four-digit addition problems. Students will utilize regrouping to determine the sum.
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Addition Worksheet
In this addition worksheet, students will determine the sums of 20, three digit addition problems. Students will utilize regrouping to determine the sum.
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Addition Worksheet
In this addition worksheet, students will determine the sum of 16 double digit addition problems with three addends each. Students must utilize regrouping to determine these sums.
Curated OER
Number Sense and Operations
In this number sense and operations worksheet, 5th graders solve 17 different types of problems that include estimation and determining the exact answer of an equation. First, they determine the sum of two numbers closest to one listed....
Curated OER
What's the Difference?
In this finding the difference in sums instructional activity, 1st graders look over two boxes of numbers and circle the pairs of numbers in each box that have a difference of 9 in the first one and 6 in the second one.
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