Curated OER
Multiplying up to 12 by 12 (A)
In this mathematics activity, students solve numerous problems by multiplying up to 12 times 12. There are 36 problems to solve on the sheet.
Curated OER
Money Addition (A)
In this mathematics worksheet, young scholars solve a number of money problems by adding a decimal to another decimal. There are 20 problems to solve on the sheet.
Curated OER
Two-Digit Numbers Ending in 8 or 7
In this mathematics instructional activity, students circle the dots to form a complete ten and compare their problem to the one with just ones' digits. Then they add each problem and write down the corresponding problem with just the...
Curated OER
Adding/Subtracting Decimals
In this decimal worksheet, students find the sum and difference of positive and negative decimal numbers. Equations contain two to three terms, with multiple operations. Thirty addition and subtraction problems are on this worksheet. ...
Curated OER
Circle the Wagons a Number is Missing
Second graders have an opportunity to work in pairs as they search for the missing addend to complete a mathematical sentence. They identify and demonstrate the ability to change the order of the addends and still produce the same sum....
Curated OER
Number Sense
Eighth graders participate in a lesson that is concerned with reviewing basic math concepts using the four operations. The activity is composed of a math game that is played by them.
Curated OER
Addition Facts With Sums to 18
Young scholars explore addition facts with sums to 18. Using Unifix cubes, students demonstrate addition sentences. They use a variety of manipulatives to illustrate addition facts for different sums. Young scholars participate in a...
Curated OER
Mathematics: One Hundred Plastic Ants
Third graders pick up plastic ants scattered on the floor. They take them back to their desks, count them, and add their totals to those of other students.
Curated OER
Magic Squares
In this magic squares worksheet, students solve 3 different magic squares shown on the sheet. First, they identify the numbers already used in each square. Then, students determine which number goes in each blank to equal the same sum in...
Curated OER
Independent Practice: Visual Sums of 3 Numbers
In this addition learning exercise students will solve ten addition problems involving the sum of three numbers. Students will look at a picture to help them visualize and solve the problem.
Curated OER
Percents and Mixture Problems
In this percents and mixture problems instructional activity, learners solve 18 different problems that include mixture problems. First, they determine the sum of a number, times its reciprocal. Then, students determine the sum of a...
Curated OER
Discussion Sheet 2: Indefinite Integrals
In this indefinite integral worksheet, students compute the volume of a solid located between planes. They evaluate the average value of functions over a given interval and sketch functions. Students find the sum of numbers in a...
Curated OER
How Many?
In this mathematics worksheet, students count the number of objects in each group illustrated. Then they write how many in the box to the right.
Curated OER
Worksheet #10
In this mathematics learning exercise, 2nd graders solve various problems by either adding or subtracting when necessary two-digit terms. They use a number line at the top for help solving each.
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Math Practice Series Worksheet #3
In this mathematics learning exercise, 1st graders solve numerous addition problems by adding single and two-digit numbers to each other. There are 36 problems to solve on the sheet.
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Word Problems
In this mathematics worksheet, 3rd graders solve ten word problems. They identify what total means and write a division or multiplication sentence for each problem. Students also draw a picture for each problem of the situation.
Curated OER
Estimation 4: Sum and Difference
In this estimation worksheet, students read story problems, determine the correct operation, and mentally evaluate the problem by using compatible numbers or through the process of rounding. Students complete three multiple choice problems.
Curated OER
Perimeter Play
Fifth graders identify that the perimeter of a shape is the sum of its sides.
Students cut some string or rope to make the sides of a rectangle. Students write the measurement of the length of the rectangle and the measurement of the...
Curated OER
Math + Fitness = FUN
Students play a game wherein they role 2 dice and calculate either the sum, difference or product of the numbers and the answer is the number of exercises they do. They change stations to do different exercises or skills.
Wolfram Research
Wolfram Math World: Sum
This page gives a complete discussion of the advanced applications of the summation operation in mathematics. Provides information about sigma, or summation notation, a manner of writing sums and how to manipulate them. The site also...
University of Texas
Inside Mathematics: Incredible Equations [Pdf]
This task challenges a student to demonstrate understanding of concepts involved in addition and subtraction.
University of Texas
Inside Mathematics: Pocket Money [Pdf]
This task challenges a student to demonstrate fluency in adding and subtracting whole numbers.
Utah Education Network
Uen: Properties
This multi-segment lesson plan walks learners through understanding and applying the properties of multiplication and addition. It provides a song for learning the properties as well as ideas for assessment.
Sophia Learning
Sophia: Sum of Angles in Polygons
This tutorial with video and slideshow components investigate the characteristics of polygons as well as how to calculate the interior and exterior angles of any polygon. It offers two PowerPoint presentations and two videos that feature...