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Curated OER
Add Two Digit Numbers - Vertical
In this problem solving worksheet, students add together 20 problems involving 2-digit whole numbers. Students record their answers underneath each problem.
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TAKS Math Quiz-Addition
In this TAKS math quiz activity, students take an online quiz focused on simple addition. Quiz may be graded online by clicking a link.
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Addition / Subtraction Connection
In this addition and subtraction worksheet, students write addition and subtraction number sentences that relate to each other and solve word problems. Students complete 6 sets of problems.
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Matrix Addition
In this matrix activity, students add matrices containing four to nine numbers. Explanations and examples are provided. This two-page activity contains ten problems.
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Writing Equations - Addition/Subtraction Up to 2-Digits Without Regrouping
In this addition and subtraction practice activity, students use their problem solving skills to use the information provided to write and solve 12 equations.
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One Digit Addition; With Regrouping-Z
In this math instructional activity, students add two single digit numbers. The instructional activity has the silhouette of a bat in the background. Problems are presented in column format.
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Write the Equations
In this writing equations to problem solve worksheet, students read the addition and subtraction problems, write the one-digit and two-digit equations, and solve without regrouping. Students solve 15 problems.
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Addition With Regrouping
In this addition with regrouping activity, students complete a set of 12 problems; all problems are laid out in a "graphic organizer" style box and the tens and ones columns are labeled.
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Addition Using Objects
In this addition using objects instructional activity, students solve 5 problems that include adding various objects as shown. First, they count the number of each object in the first column and write that number in the first box. Then,...
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Addition Magic Squares #1
In this math worksheet, learners solve 6 four square addition puzzles in which the numbers must add correctly in the rows and columns. The numbers on these math squares are from 1 to 20. There are 9 worksheets available.
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Addition Exercises
In this adding one worksheet, students add numbers in a two-column graph to find the sums by adding one to the numerals one to nine in sequence and observe the answer patterns. Students find eight sums.
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Mental Math, Adding Decimals, Multiplication Facts
A thorough presentation is chock full of great tips on how to develop mental math skills, add decimals, and reinforce the memorization of multiplication facts. Learners solve a variety of problems, while getting tips along the way. An...
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Multiplication PowerPoint
Providing a step-by-step explanation of two-digit multiplication, a list of vocabulary words associated with this concept, and great examples, this resource would be a terrific classroom addition. Besides the set of of simple...
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Santa's List Sums (C4)
In this addition worksheet, students add up the sums of the boys and girls in each column to come up with a total. Students add up 17 problems of adding four digit numbers to come up with a sum.
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Ten More and Ten Less
Get learners to analyze two-digit numbers based on place value, and use manipulatives to add and subtract both 1 and 10. A place value chart is available, and you can project it during guided practice. Through visualizing...
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Adding and Subtracting Integers (Positive and Negative Numbers)
In this math worksheet, young scholars solve 15 problems in which positive and negative integers are added and subtracted. The answers are given in a separate column on the page.
Florida Center for Reading Research
Phonics: Varient Correspondances, Silent "e" Changes
Engage early readers in a silent e activity to help them understand the changes the letter can make to a simple word. With the provided cards, learners read and write each word as it appears without the silent e. Then they read and write...
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Mixed Number to Improper Fractions
In this mathematics worksheet, 4th graders convert each mixed number given into an improper fraction. There are 24 problems to solve on the sheet.
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Carrying to Tens and to Hundreds
In this math worksheet, students learn to add larger numbers, carrying 2 times to the tens and to the hundreds. Students study the detailed pictures and examples; there are no problems to solve on the page.
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Investigation - Who is Right?
Third graders investigate two mathematic scenarios and determine which is correct. They compare adding columns and places (such as the tens place, hundreds place, and so on) and familiarize themselves with how to add larger numbers.
Mathematics Vision Project
Module 7: Modeling with Functions
The sky's the limit of what you create when combining functions! The module begins with a review of transformations of parent functions and then moves to combining different function types using addition, subtraction, and...
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Adding and Subtracting Decimals With Excel
What a great way to have pupils apply classroom learning to real-world skills! They complete problems involving the addition and subtraction of decimals related to banking-type questions, and then use a spreadsheet to display their results.
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Adding and Subtracting Matrices
In this adding and subtracting matrices worksheet, students add 2 sets of matrices and subtract one. They are introduced to the rules of adding and subtracting matrices.
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A Method of Front-End Arithmetic
Teach the class how to add using front-end addition. They are given a shopping list and use it to practice adding from the largest place value to the smallest. Computational math and shopping, what fun!