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addition and subtractionClear All
Curated OER
Check Subtraction
In this checking subtraction instructional activity, 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
Codebreaker Math
Students solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages using math...
Curated OER
The Case of the Missing Numbers
In this finding the unknown numbers worksheet, students help Detective Digit solve addition and subtraction problems, match the answers with letters, and find the name of the number thief. Students solve and match 16 problems.
Curated OER
3-Digit Subtraction and Addition
For this 3-digit subtraction and addition worksheet, students problem solve with regrouping. In this fill in the blank worksheet, students answer sixteen problems.
Curated OER
Inverse Relationships (5)
In this addition and subtraction fact family learning exercise, students use the numbers given to fill in the missing numbers in each pair of fact families. Students solve 60 problems.
Curated OER
1st Grade Strategy Worksheets
Enhance your first grade math curriculum with a thorough resource packet. It includes worksheets for practicing counting on and counting back, addition and subtraction facts to 10, and addition and subtraction doubles.
Alabama Learning Exchange
Ice Fishing is for the Birds
Approach addition with young mathematicians in an engaging way through this penguin-inspired activity. In small groups, scholars think about times they have used addition in their real lives (there are some suggestions given), then watch...
Math Learning Center
Grade 1 Supplement Set A4 – Number and Operations: Equivalent Names
Engage young mathematicians in developing their basic arithmetic skills with these great hands-on activities. Using Unifix® cubes to model a variety of single digit addition and subtract problems, children build a basic...
Math Centre
Fractions: Adding and Subtracting
Young mathematicians piece together the puzzle of fractions. Starting with the addition and subtraction of fractions with like denominators, this series of example problems and skills practice exercises transitions learners...
Curated OER
Reading Tally Charts #2
Keep count with tally marks! First graders practice reading tally marks with this straightforward learning exercise. They work with interpreting data from a chart, as well as working with addition and subtraction under 20. A great math...
Curated OER
Addition and Subtraction: numbers to 20
Does your school encourage learning math facts or fast facts? If it does you can definitely use this resource. There are 20 lists, each list contains 10 problems, and each problem set focuses on adding and subtracting specific numbers,...
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
Addition and Subtraction
In this addition and subtraction worksheet, students fill in missing numbers in addition and subtraction problems, helping "Molly get out of the pyramid." A reference web site is given for additional activities.
Curated OER
Addition Subtraction 2
In this sum and difference instructional activity, students find the sum and differences of equations with whole numbers and variables. Students complete 6 equations.
Curated OER
Addition and Subtraction
In this addition and subtraction learning exercise, students complete addition and subtraction problems that contain negatives, brackets, and more. Students complete 10 problems.
Curated OER
Decimal Addition and Subtraction for Grade 3
In this decimal addition and subtraction for grade 3 activity, 3rd graders answer 10 multiple choice questions, not interactively, with the answers available online.
Curated OER
Food Pyramid Power: Looking Back and Moving Forward
Students show their knowledge of properties of objects as it pertains to sorting and creating patterns. For this food pyramid power lesson, students show their ability to use whole numbers in different representations by appling...
Curated OER
20 Questions: Math Questions
Here are 20 questions just waiting for a class to complete them. Each of the problems is either subtraction or addition, under or up to 20. Learners complete each question, then exchange papers for a peer to grade. Answers are included.
Curated OER
Integer Addition and Subtraction (B)
In this integers worksheet, students solve 30 problems in which positive and negative numbers are added and subtracted. There is no instruction on the page.
Curated OER
Dealing With Money and Measurement- Addition and Subtraction of Decimals
In this dealing with money and measurement instructional activity, students practice adding and subtracting with decimals. They complete 12 short word problems and check their answers online.
Curated OER
Double Deckers- Addition and Subtraction Practice
In this addition and subtraction activity, students complete number sentences using the given digits. They write an addition problem on top of a subtraction problem by filling in the blanks that are shown in pictures of double decker buses.
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