Curated OER
Number Bonds to 10, 20, 30 & 50
In this number bonds worksheet, 1st graders complete the sets of five addition problems in each set. Students fill in the missing element of the addition sentence.
Curated OER
Adding By One Digit
In this addition worksheet, learners find the pattern. Students must determine which one digit number to add in order to find the missing number. There are one hundred and fifteen problems in all.
Curated OER
Strategies for Problem-Solving: Finding Patterns
In this strategies for problem-solving: finding patterns worksheet, 4th graders use a given pattern to answer 3 questions, then determine another pattern to answer 3 more.
Curated OER
Order of Operations
In this Algebra I worksheet, 9th graders use the order of operations to evaluate numerical expressions containing parenthesis and brackets. The one page interactive worksheet contains instruction, worked examples and ten practice...
Curated OER
Hidden Dominoes
For this addition facts worksheet, students examine 2 dominoes that are overlapping and figure out the missing number that will make the sums the same.
Math Salamanders Ltd.
Adding Decimal Hundredths Sheet 3
In this decimal addition worksheet, learners complete a set of 60 problems, filling in the missing decimal numbers to complete equations using hundredths.
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.
Curated OER
Place Values - Subtracting
Students explore the concept of subtracting a number from a place value. In this subtracting from a place value lesson, students subtract numbers from a particular place value.
Curated OER
Tortillas
Students convert recipes for tortillas. They calculate the amounts of ingredients as they convert recipes and write an explanation of the task to demonstrate their calculations. After reviewing their calculations, they demonstrate how...
Curated OER
A Beginning Look at Basic Algebra-Lesson 1-12
In this Algebra I worksheet, 9th graders explore the basic of beginning algebra: the order of operations, integer operations, translating phrases and sentences, and solving basic one-step equations. The six page worksheet...
Curated OER
Hands On Math Lessons with Technology
Students explore a variety of math concepts. In this integrating technology lesson, students visit online webtools such as Max's Math Adventure, I Know That Math, Hands on Banking, and more. A description of each website is provided.
Curated OER
Math Maven's Mysteries
In these story problem worksheets, students read the story problem 'The Case of the Hatcher Hotel Heist' and use the information within the story to help them solve the problem. Students use addition and subtraction to find the next room...
Curated OER
Math Game Using A Tic-Tac-Toe Board
Elementary schoolers play a math game using a Tic-Tac-Toe Board. This simple idea can be used with virtually any grade level. A team of learners are the "O's," and the other is the team of "X's." Each time a team gets a problem correct,...
Kelly's Kindergarten
May Daily Activities
Five weeks of daily activities for the month of May! With a new activity for each day of the month, your youngsters will utilize a variety of skills and practice everything from sight words and spelling to counting by twos or coloring...
LABScI
Atomic Structure and the Periodic Table of Elements: The Secret Agent Lab
Food always gets attention! Model atomic structure using fruit loops to represent the subatomic particles. After building models, scholars create ionic bonds using their models. Finally, they use these concepts to create a periodic...
Curated OER
Systems of the Human Body
Students play an interactive activity and answer questions about body systems.
Curated OER
Biology: Systems of the Human Body
Students examine the different systems of the human body and how they work independently and cooperatively. They complete sevral online interactive projects designed to reinforce how the systems work alone and together. Students make...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Missing Number
[Free Registration/Login may be required to access all resource tools.] The resource is a video showing students how to find a missing number in a multi-step addition and subtraction problem using inverse operations. Adaptive practice...
Primary Resources
Primary Resources: Basic Addition and Subtraction
An extensive collection of teacher resources to help in teaching and reviewing the concepts of basic addition and subtraction. There are many worksheets, activities, PowerPoint presentations, smartboard activities, Word, Excel, and pdf...
CK-12 Foundation
Ck 12: Elem Math: Adding, Subtracting, and Multiplying Missing Number
[Free Registration/Login may be required to access all resource tools.] A learning module where students must apply the order of operations to find the missing numbers in equations involving addition, subtraction, and multiplication. A...
Khan Academy
Khan Academy: Addition & Subtraction: Find the Missing Value
Practice finding the missing value in an addition or subtraction equation involving negative numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Addition & Subtraction: Find the Missing Value
Practice finding the missing value in an addition or subtraction equation involving negative numbers.
CK-12 Foundation
Ck 12: Elem Math: Completing the Addition Sentence Sums to 20
[Free Registration/Login may be required to access all resource tools.] The video shows how to count backwards to determine the missing number in an addition problem. The video is followed by practice problems to assess student...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting With Parentheses
[Free Registration/Login may be required to access all resource tools.] The resource includes a video tutorial on how to find a missing number in a multi-operational problem by working backwards. The video is followed by practice...