Math Salamanders Ltd.
Addition - Up To 20 Sheet 6
For this addition worksheet, learners use their knowledge of addition facts to fill in the missing numbers in two addition charts.
Math Salamanders Ltd.
Addition - Two Digit Addition Sheet 2
Learners solve 30 two-digit addition problems printed horizontally, with the reminder to add in their heads, starting with the bigger number first.
Curated OER
Addition - Up to 12
For this addition worksheet, learners 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.
Math Salamanders Ltd.
Addition— Adding on Tens Sheet 2
In this double-digit addition worksheet, students solve 30 addition problems. Both addends in each problem are two-digit numbers.
Math Salamanders Ltd.
Addition—Up to 12 Sheet 5
In this addition activity, students complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.
Curated OER
Math Vocabulary
In this math vocabulary activity, 6th graders match twenty-three math vocabulary words from column A to the definitions in column B.
Math Salamanders Ltd.
Addition Up to 12 - Sheet 2
In this addition worksheet, learners complete a set of 20 problems, adding to the number 12. A reference website is given for additional activities.
Math Salamanders Ltd.
Addition Up To 12, Sheet 6
For this addition worksheet, students complete a total of 24 problems, adding numbers to 12. A reference website is given for additional activities.
Math Salamanders Ltd.
Addition: Adding On Ones 1
In this addition and ones worksheet, students complete 30 problems by adding a different number of ones to a two-digit number.
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 lesson, 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 plan which...
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, learners 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...
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
Students 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,...