Worksheet
Math Salamanders Ltd.

Addition - Up to 20 Sheet 2

For Students 2nd - 3rd Standards
In this addition activity, learners practice their addition skills. Students complete the activity by filling in the missing number in each of the forty addition problems.
Worksheet
Math Salamanders Ltd.

Addition - Up to 20 Blank Grid

For Students 1st - 2nd Standards
In this addition activity, students fill in facts up to 20 to complete an addition grid. The worksheet provided two blank grids. A reference website is given for additional activities.
Worksheet
Math Salamanders Ltd.

Addition Up to 12 - Sheet 2

For Students K - 2nd Standards
In this addition worksheet, learners complete a set of 20 problems, adding to the number 12. A reference website is given for additional activities.
Worksheet
Math Salamanders Ltd.

Addition - Up to 12 Sheet 4

For Students 1st - 2nd Standards
In this addition worksheet, students solve horizontal addition problems. They count on to find the missing addend.
Worksheet
Math Salamanders Ltd.

Addition—Up to 12 Sheet 5

For Students 1st - 3rd Standards
For this addition activity, students complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.
Worksheet
Math Salamanders Ltd.

Addition - Up to 20 Sheet 4

For Students 1st - 3rd Standards
In this addition worksheet, students work out problems that can be equal up to 20. These 40 problems are lined up side by side.
Worksheet
Math Salamanders Ltd.

Addition— Adding on Tens Sheet 2

For Students 3rd - 4th Standards
In this double-digit addition worksheet, students solve 30 addition problems. Both addends in each problem are two-digit numbers.
Worksheet
Curated OER

Math Vocabulary

For Students 6th
In this math vocabulary worksheet, 6th graders match twenty-three math vocabulary words from column A to the definitions in column B.
Lesson Plan
Curated OER

Add It Up In Number Ville! Adding 2-Digit Numbers With and Without Regrouping

For Teachers 2nd - 4th
Students explore adding 2-digit numbers. For this math lesson, students identify 2-digit numbers and use base ten blocks to practice adding. Students use addition to break a code.
Lesson Plan
Curated OER

Dance, Dance, Dance

For Teachers K - 2nd
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.
Worksheet
Curated OER

Addition

For Students 1st - 2nd
In this addition learning exercise, students enhance their simple addition skills using addition strategies to solve the two worksheets of addition problems.
Lesson Plan
Curated OER

Beginning Addition

For Teachers K
Students examine the concept of addition by adding two one-digit numbers whose sum is less than ten. They count and add goldfish crackers together, chorally repeating each problem.
Lesson Plan
Curated OER

Alternative Algorithms

For Teachers 6th - 8th
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...
Worksheet
Curated OER

Mental Arithmetic Race

For Students 7th - 8th
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...
Lesson Plan
Curated OER

Smart Doubling

For Teachers 2nd
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.
Worksheet
Math Salamanders Ltd.

Adding 1s, 10s, 100s, and 1000s

For Students 3rd - 4th Standards
In this addition activity, students complete a 13-row chart. They start with three or four-digit numbers and add 1, 10, 100, or 1000 to each number to fill in the chart. The last four questions require subtraction because the initial...
Lesson Plan
Curated OER

Three-Digit Addition and Subtraction With Regrouping

For Teachers 2nd
Second graders access prior knowledge of addition and subtraction using two-digit numbers and calculate easily with them. In this three-digit addition lesson, 2nd graders learn to add and subtract three-digit numbers with and without...
Worksheet
Math Salamanders Ltd.

Addition - Up to 20 Sheet 5

For Students 1st - 3rd Standards
In this addition worksheet, learners complete missing addend problems by plugging in numbers one to 20. Students complete 40 problems.
Lesson Plan
EngageNY

Overcoming a Second Obstacle in Factoring—What If There Is a Remainder?

For Students 10th - 12th Standards
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!
Worksheet
Curated OER

Missing Addends

For Students 1st - 2nd
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...
Worksheet
DK Publishing

Money Word Problems #2

For Students 2nd - 4th Standards
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...
Lesson Plan
Curated OER

Addition And Subtraction of Decimals

For Teachers 4th - 5th
Learners participate in a lesson plan of adding and subtracting decimals. They should review place values with decimals before beginning the lesson plan. The lesson plan also includes sample problems for the teacher to use in direct...
Worksheet
Curated OER

Algebra: Addition and Subtraction Equations

For Students 5th - 6th
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.
Lesson Plan
Curated OER

Math Jeopardy: Basic Skills

For Teachers 7th - 8th
Students play a PowerPoint activity to be used as a review of basic skills for order of operations, and the operations of addition, subtraction, multiplication, and division for whole numbers, some fractional numbers and integers....

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