Laura Candler
In the Dog House
Teach your young pups some new tricks with this math facts activity. Using a deck of cards and the included game board, pairs of young mathematicians draw cards and attempt to make products that are larger than their partners' products...
Curated OER
Lesson Design Protocol: Add and Subtract
Addition and subtraction are studied in this math instructional activity. Upper graders add and subtract whole numbers up to 1,000 with and without regrouping.
Curated OER
Three-Digit Subtraction, No Regrouping
Subtract a three-digit number! Your class will have no problem subtracting two and three-digit numbers after practicing with this worksheet. There are 20 problems to solve, no regrouping, borrowing, or trading involved.
Curated OER
One More or One Less?
Hook new mathematicians with a candy-themed approach to addition and subtraction. They examine 10 numbers (not exceeding 19) printed on candy wrappers. For each, learners calculate and record numbers with values one more and one...
Little 10 Robot
Operation Math Code Squad
Your mission, if you decide to accept it, is math skills practice. In this app, Mission Impossible meets basic number operation skills, and your students are the secret agents.
Curated OER
Mental Math: 5 a Day
This is a really cool math resource! There are nineteen different slides containing five math problems each. They are intended to be used as daily math warm ups and address skills such as, addition, problem solving, missing addends, word...
Math Learning Center
Second Grade Assessments and Scoring Checklists, Common Core State Standards
How are your second graders progressing in their math skills? Find out with a series of math assessment activities. With baseline assessment score sheets for each skill, you can track how well your kids are adding, subtracting, telling...
Curated OER
Fairy Tale Math
Have class members rewrite a favorite fairy tale in order to incorporate numerical information. For inspiration, the teacher provides an example written by another second grader. These modified stories are then used to write word...
Kids Can Have Fun
Cut and Paste Counting Monsters
Young children will have a blast learning how to count these monster math manipulatives. Provided with a series of boxes numbered from 1 to 10, learners must place the correct number of monsters in each space to demonstrate their ability...
DataWorks
4th Grade Math: Multi-Step Word Problems
Solving word problems requires reading comprehension and math computation. Through an interactive slideshow presentation, fourth graders observe and follow each step toward solve multiplication and division word problems.
Curated OER
Picture Graphs
An innovative way to practice reading data, as well as the four operations! Three picture graphs prompt first graders to count marbles, books, and pets. They also solve addition and subtraction problems. Additionally, they work on...
Curated OER
Subtraction 5
In this finding the differences worksheet, students subtract three-digit numbers with and without regrouping. Students solve 20 problems.
CK-12 Foundation
Linear Systems with Addition and Subtraction: Fill in the Boxes 1
Eliminate a color by dragging shapes. The interactive provides a graphical color display that allows for pupils to solve a linear system by elimination. Learners combine figures following set rules for positive and negative shapes. The...
CK-12 Foundation
Linear Systems with Addition and Subtraction: XYZ Tiles
Cover it up to reveal the values of variables. Using arrangements of colored tiles representing algebraic expressions, pupils layer them over each other to determine the values of variables. The procedure models the elimination method in...
CK-12 Foundation
Linear Systems with Addition and Subtraction: Fill in the Boxes 2
Systematically combine shapes to arrive at one solution. The resource models a system of linear equations using colored shapes. Pupils follow rules to combine circles and squares to add the two equations together, resulting in one...
CK-12 Foundation
Simplify Sums or Differences of Single Variable Expressions: Addition and Subtraction of Like Terms
Investigate the process of combining like terms using an interactive animation. Scholars tackle simplifying expressions by manipulating rectangles that represent the terms. They add and subtract terms to arrive at the result.
Curated OER
Check Subtraction
In this checking subtraction worksheet, students learn to check a subtraction problem by using addition. Students solve and check 7 problems in which three digit numbers are subtracted with borrowing.
Curated OER
Inverse Relationships (5)
In this addition and subtraction fact family worksheet, students use the numbers given to fill in the missing numbers in each pair of fact families. Students solve 60 problems.
Curated OER
Addition and Subtraction
In this finding the sums and differences of horizontal problems worksheet, students add and subtract one-digit and two-digit numbers using mental math. Students solve 242 problems.
Curated OER
Name For Numbers
For this same number facts worksheet, 2nd graders use either addition or subtraction to solve 8 math problems and then place the two math problems that match the numbers at the bottom of 4 trees on the lines provided.
Curated OER
Sunshine Math-2
In this problem solving activity, learners complete 8 varied word problems. Included are money, addition and subtraction, counting and fractions.
Curated OER
My Test Book: Addition and Subtraction
In this online interactive math skills worksheet, students solve 10 multiple choice math problems that require them to add and subtract using whole numbers and decimals. Students may submit their answers to be scored.
Curated OER
Addition and Subtraction Practice
In this addition and subtraction worksheet set, students complete 20 pages of addition and subtraction practice. They find the sums or differences to 10 problems on each page. They answer problems that have either two or three digit...
Curated OER
Addition & Subtraction
In this addition and subtraction worksheet, students solve 4 different types of problems that include adding and subtracting numbers. First, they write addition or subtraction about each picture. Then, students write the correct...