Curated OER
A Shopping Spree!
In this adding prices of items worksheet, students choose items and add their totals using mental math, paper and pencil, and the calculator.
Curated OER
Mental Division Year 4
In this finding the quotients in word problems learning exercise, learners divide two-digit and three-digit numbers by one-digit numbers and find the factors of numbers. Students solve 12 problems.
Curated OER
Addition - Up to 12
For this addition worksheet, students solve the horizontal addition problems. Students count on from the addend given to get the find the missing addend.
Curated OER
Addition-Up to 20 (Sheet #1)
In this addition worksheet, students practice their adding with one--digit and two-digit numbers. Students complete the worksheet by solving twenty-four addition problems.
Curated OER
Addition: Double digit
In this double-digit addition worksheet, learners solve 30 addition problems. Both addends in each problem are two-digit numbers.
Curated OER
Math Vocabulary
In this math vocabulary instructional activity, 6th graders match twenty-three math vocabulary words from column A to the definitions in column B.
Curated OER
Add It Up In Number Ville! Adding 2-Digit Numbers With and Without Regrouping
Students explore adding 2-digit numbers. In this math lesson, students identify 2-digit numbers and use base ten blocks to practice adding. Students use addition to break a code.
Curated OER
Dance, Dance, Dance
Use dance and song to help your charges in adding whole numbers to 10. In this adding to 10 instructional activity, learners become the manipulatives as you add them.
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
Addition
Explore the concept of number bonds with your young elementary students. They will become familiar with the number bonds to 10, 20, and 100, and then play games to practice these skills. This is a differentiated lesson which includes an...
Curated OER
Fiddle Dee Diddle - It's Time For A Riddle
Energize your math class! They will use the story problem process to solve math riddle problems. They compute and solve problems involving addition and subtraction of 3- and 4- digit numbers and basic facts of multiplication and division...
Curated OER
Alternative Algorithms
Analyze algorithms for computing with rational numbers and develop fluency in their use with your math class. They work individually to solve the problems on the "Alternative Algorithms" sheet. Then, they analyze the appropriateness of...
Curated OER
Ways to Add
In this addition worksheet, students learn several different options to add the numerals twenty-four and thirty. The options are models, mental math, a hundreds chart, or pencil and paper.
Curated OER
Mental Arithmetic Race
In this mental arithmetic race, students compute as many arithmetic problems as possible in a given length of time. Problems include whole and decimal numbers. Students mentally divide multiply, and add whole numbers and decimals. This...
Curated OER
Smart Doubling
Second graders use mental math in calculations involving addition and subtraction. They study doubles facts to work out addition problems mentally using part and or whole reasoning.
EngageNY
Overcoming a Second Obstacle in Factoring—What If There Is a Remainder?
Looking for an alternative approach to long division? Show your classes how to use factoring in place of long division. Increase their fluency with factoring at the same time!
Curated OER
Missing Addends
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the concept....
DK Publishing
Money Word Problems #2
Are you experiencing money problems? Here are some more! Young mathematicians practice their addition and subtraction skills with money values in these word problems and number sentences. Some of the 25 questions prompt scholars to...
Curated OER
The Part-adder 1
Second graders investigate the addition of whole numbers. They mentally perform calculations involving addition and subtraction. They make sensible estimates and check the reasonableness of answers.
Curated OER
Addition Strategies: Compensation
In this math worksheet, students learn the addition strategy of compensation: adding an easy number like 10, 20 or 30 and then subtracting a very small number like 1 or 2. Students solve 12 problems on the page.
Curated OER
Equal Additions
Learners explore the relationships between numbers through the use of "equal addition" and "equal subtraction." Through the use of number sense, they are able to computer addition and subtraction problems mentally. Individually,...
Curated OER
Basketball: Number Sense
Third graders explore their addition and subtraction skills. In this number sense instructional activity, 3rd graders analyze different scoring possibilities for a basketball game. This instructional activity incorporates the use a video...
Curated OER
Addition And Subtraction of Decimals
Learners participate in a lesson of adding and subtracting decimals. They should review place values with decimals before beginning the lesson. The lesson plan also includes sample problems for the teacher to use in direct instruction....
Curated OER
Algebra: Addition and Subtraction Equations
In this algebra worksheet, students solve 6 problems in which students use the sample model to write equations. Students write the equation in words, replace the words with values from the model. and solve the equation.