Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...

Young mathematicians explore two-digit subtraction. They will investigate multiple ways to subtract numbers involving regrouping. Resources are provided.

Students explore the concept of "regrouping." In this 2-digit addition with regrouping lesson, students create visual representations of combinations that equal ten using a tens frame. Students use manipulatives to represent the tens...

In this finding the sums activity, students add one digit-numbers plus two-digit numbers with no regrouping. Students solve 30 problems.

In this adding and subtracting three step problems worksheet, students add, subtract, or both add and subtract fractions with uncommon denominators and mixed numbers. Students solve 10 problems.

In this addition worksheet, students solve 10 math problems in which they add the number 2 to a single digit number. The answers are on the second page.

In this addition worksheet, students solve 10 math problems in which they add 8 to a single digit number. The answers are on the second page.

In this addition learning exercise, students solve 10 math problems in which they add the number 9 to a single digit number. The answers are on the second page.

Students choose a number from one to twelve and tell a number story about it. They listen to the teacher read "Numbers in Art" by Lucy Micklethwait. Students choose three numbers from one to twelve and view works of art while looking for...

Second graders use cards to create 3-digit addition problems and add them together. For this addition lesson plan, 2nd graders add numbers with and without regrouping. Students use a deck of cards to play an addition game in pairs. A...

For this addition worksheet, students complete addition problems where they add the number 1 to the numbers 2 - 9 with numbers and pictures. Students complete 8 problems.

Second graders identify number patterns. In this number lesson, 2nd graders find the rule or pattern in a group of numbers and continue the pattern using the rule. They create their own number pattern by making their own rule. 

Upper graders work with number patterns. In this pattern lesson, learners recognize and continue number patterns and find the rules.  They do some as a class and complete an assessment. 

For this rational numbers worksheet, 9th graders solve and complete 16 different problems that include adding and subtracting various rational numbers. First, they determine the sum or difference for each equation. Then, students...

In this signed numbers worksheet, students simplify equations by using the indicated operation. They add, subtract, multiply, and divide equations containing two to four positive and negative integers. Three of the 25 equations contain...

In this number sense worksheet, students find the missing numbers. Students are to find the missing number or numbers using the rule supplied, or find the rule for the numbers supplied to complete each of the eight charts.

Those are some big addends! Challenge students to find the sum of 16 equations, each of which has at least three addends. They are adding, two, three, and four-digit numbers here, and regrouping is a given. Two example problems offer...

Use this fraction worksheet to have your mathematicians add and subtract mixed numbers and fractions, 10 problems total. Answers and a link to other worksheets on page 2.

In these three finding the sums worksheets, students add one-digit plus one-digit numbers to problem solve. Students solve 30 problems.

In this addition worksheet, 1st graders add together all the numbers going across and down 8 cubes. Students add any missing numbers in order for each addition math problem to be the same sum going across and down.

In this vertical addition worksheet, learners add one through three digit numbers together vertically. Students complete 40 problems.

Because this addition word problem has the answer written on the same page, consider using it as a warm-up and projecting it. Simply cover up the answer until you're ready. The problem has beginners adding up two single-digit numbers for...

In this addition worksheet, students complete a set of 12 problems by adding three- and four-digit numbers. A reference website is provided for additional activities.

Finding a percentage of a number is a skill learners must know in order to be successful thinkers. The resource introduces this concept with a guided explanation and can be used with the additional materials as a...