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Curated OER
Addition Terminology and Practice
In this addition activity, students review the terminology and definitions for the words addends and sum. Students then write the given numbers as sums in as many different ways as they can. Students also write addition sentences for the...
Curated OER
Relating Multiplication And Addition
In this relating multiplication and addition worksheet, learners, with a partner, problem solve and calculate the answers to ten subtraction and addition equations.
Curated OER
Adding Decimals with Hundredths
In this worksheet, students learn to add decimal numbers to the hundredths. Students first compare adding and subtracting decimals with the corresponding fractions in 6 problems. Then students add 35 decimal numbers mentally, filling out...
Curated OER
Sums With 9
In this sums with nine worksheet, 1st graders calculate the sums of nine in ten sets of red dots, calculate the answers to twenty five addition equations.
National Security Agency
Borrowing from Our Neighbors
Young mathematicians explore two-digit subtraction. They will investigate multiple ways to subtract numbers involving regrouping. Resources are provided.
Curated OER
Common Core State Standards 1st Grade Math
Here are the complete set of the math practice standards and the Common Core standards for first grade. They cover operations & algebraic thinking, operations in base 10, measurement and data, and geometry. Illustrated nicely with...
Curated OER
Adding and Subtracting Decimals
The addition and subtraction of decimals is a relatively simple process. The most important thing to remember is to have all of the decimal points lined up. This presentation gives that strategy, plus some others to use when performing...
Curated OER
Adding and Subtracting Integers
In this adding and subtracting integers worksheet, students find the sum or difference of 9 problems. Students then evaluate 4 expressions given certain values.
Curated OER
Finding Perimeter and Area
Third graders understand the perimeter by units and now find perimeter by addition. In this perimeter lesson, 3rd graders relate their prior knowledge to adding the sides of the perimeter by answering a series of questions.
Granite School District
Kindergarten CCSS Math Vocabulary Word List
Help kindergartners develop the academic language they need to master the Common Core standards with this list of math vocabulary. Including the definitions of each term as well as a set of word cards with supporting images and examples,...
Curated OER
Math in English Skills I Exercise Book: Addition and Subtraction
Whether your pupils need extra help or they simply need to practice their basic computation skills, this packet will do the trick. It includes a written rationale, answer key, and over 10 pages of double-digit addition and subtraction...
Virginia Department of Education
Rational Expressions
Demonstrate the progression of operations with rational expressions through a multi-day instructional activity, equipped with worksheets for each day. High schoolers develop the concepts needed to perform operations with rational...
Curated OER
Mental Math Methods
In this mental math worksheet, students use mental math methods to solve problems. Students complete 1 addition, 1 multiplication, and 1 subtraction problem using these methods.
Curated OER
Patterns, Functions & Algebra
Students participate in numerous activities and games. In pairs, they play card games to find relationships between a random set of playing cards. After writing samples of Dear Abby letters concerning math problems, students create a...
Curated OER
Finding Averages
In this averages and mean instructional activity, 4th graders find the average and/or mean of 5 groups of numbers and place their answers on the lines provided.
Curated OER
Properties of Numbers
In this algebra worksheet, students solve problems using the 4 different properties of numbers. They apply associative, commutative, additive and distributive properties to each equation. There are 10 multiple choice questions with an...
Curated OER
Mental Math: Use the Properties-Reteach
In this mental math reteach worksheet, students review the commutative, associative and distributive properties, then complete a set of 13 problems. A reference web site is given for additional activities.
Curated OER
Popsicle Stick Regrouping Fun
Students demonstrate regrouping in subtraction. In this math computation instructional activity, students use popsicle sticks to practice the regrouping strategy. Students practice several examples of regrouping problems in small groups.
Curated OER
Subtracting Greater Numbers
For this subtracting greater numbers worksheet, students, with a partner, problem solve and calculate the answers to six addition equations.
NumberNut
Number Nut: Addition: More Than Two Addends
Explains how to add three or more multi-digit numbers.