Students solve 30 two-digit addition problems printed horizontally, with the reminder to add in their heads, starting with the bigger number first.

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.

In this addition worksheet, learners complete a set of 20 problems, adding to the number 12. A reference website is given for additional activities.

In this addition worksheet, students solve horizontal addition problems. They count on to find the missing addend.

In this addition activity, students complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.

In this addition worksheet, students complete a total of 24 problems, adding numbers to 12. A reference website is given for additional activities.

In this addition learning exercise, students work out problems that can be equal up to 20. These 40 problems are lined up side by side.

In this addition and ones worksheet, students complete 30 problems by adding a different number of ones to a two-digit number.

In this double-digit addition instructional activity, students solve 30 addition problems. Both addends in each problem are two-digit numbers.

In this math vocabulary worksheet, 6th graders match twenty-three math vocabulary words from column A to the definitions in column B.

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.

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.

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...

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...

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...

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.

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...

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.

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!

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...

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...

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.

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.

Third graders explore their addition and subtraction skills. For this number sense lesson, 3rd graders analyze different scoring possibilities for a basketball game. This lesson incorporates the use a video titled "Blossom and...