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Curated OER
Adding and Subtracting Like Mixed Numbers (9)
In this adding and subtracting mixed numbers worksheet, students add whole numbers and fractions with common denominators. Students solve 10 problems.
Curated OER
Adding and Subtracting Fractions/Mixed Numbers (9)
In this adding and subtracting fractions and mixed numbers activity, students solve 10 problems that require them to add and subtract mixed numbers and fractions.
Curated OER
Three-Digit Addition and Subtraction (B)
In this adding and subtracting thee-digit numbers worksheet, students solve with mixed regrouping and no regrouping. Students solve 49 problems.
Curated OER
Three-Digit Addition and Subtraction (A)
In this adding and subtracting three-digit numbers worksheet, young scholars solve with mixed regrouping and no regrouping. Students solve 49 problems.
Curated OER
Adding and Subtracting Integers Two
In this addition and subtraction worksheet, students add and subtract one and two digit numbers including negative numbers. Students complete 120 problems.
Curated OER
Investigation-Reasoning and Proof
Third graders determine the outcome of each of the following situations and justify their findings: even number + even number = ?, even number + odd number = ?, odd number + odd number = ?, and odd number + even number = ?.
National Security Agency
Borrowing from Our Neighbors
Young mathematicians explore two-digit subtraction. They will investigate multiple ways to subtract numbers involving regrouping. Resources are provided.
Curated OER
A Frightening Mix of Math: Add and Subtract
In this mixed operation activity, students solve a total of 36 problems, addition and subtraction. Answers are included on page 2.
Noyce Foundation
Apple Farm Field Trip
Monitor the growth of young mathematicians with a comprehensive addition and subtraction assessment. Using the context of a class field trip to an apple orchard, this series of four story problems allows children to demonstrate their...
Curated OER
Solving Word Problems
In this finding the sums and differences for story problems worksheet, students add and subtract up to two-digits without regrouping. Students solve 6 problems.
Curated OER
Adding and Subtracting Whole Hundreds
Kids count by 100 to determine a number in the thousands. They fill in the missing number by counting on 100 starting at the number 5000. They then add 100 to numbers like 2800 and 2600. There are 12 problems to solve.
Curated OER
Working with Coins
Count the correct change with a money math worksheet! Given certain coins, second and third graders add and subtract amounts of money to find the correct change. The worksheet uses pennies, nickels, dimes, quarters, half dollars, and...
Curated OER
Add or Subtract: Practice
For this addition and subtraction practice worksheet, students solve 28 mixed problems, answers are included on second page. Problems are a mix of addition and subtraction using 2 and 3 numbers.
Curated OER
Fractions . . . Are They Intricate or Elementary?
Elementary schoolers add and subtract fractions and mixed numbers and identify equivalent fractions of the same number. They use marshmallows to help them add fractions.
Curated OER
Subtraction: 2 digit numbers with regrouping
In this subtraction learning exercise, students subtract two digit numbers from other two digit numbers with regrouping. Students complete 30 subtraction problems.
Math Mammoth
Add & Subtract Whole Hundreds 1
In this mathematics worksheet, 3rd graders compare the problem 2700 plus 200 to the problem 27 plus 2 and explain their reasoning. Then they notice the patterns for each of the problems and continue them.
Curated OER
Relationship Between Addition and Subtraction
Students are taught how to add and subtract and use number sense to solve basic math problems. In this addition and subtraction instructional activity, students are being taught using theories from different philosophers in education....
Curated OER
Choosing the Operation: Add or Subtract
Try a new approach to addition and subtraction by giving scholars the numbers but leaving out the sign. They must determine if the numbers have been added or subtracted, then write in the appropriate operation. There are a few examples...
Math Antics
Working with Parts
Get a clearer picture of working with fractions. While continuing to work with fractions as parts, the video shows how to use drawing to compare and add fractions. Worksheets then provide opportunities for pupils to practice comparing,...
Curated OER
Three-Digit Addition and Subtraction (Q)
In this three digit addition and subtraction activity, learners add and subtract three digit numbers. Students complete 49 addition and subtraction problems where they are to focus on 3 digit numbers.
Curated OER
Subtracting With the Hundreds Place And Regrouping
Learners solve math problems involving subtracting with regrouping. They practice the steps for subtracting in the hundreds place with regrouping, through teacher guided practice. Independently, pupils complete story problems involving...
Curated OER
Adding and Subtracting Fractions with Like Denominators
Students add or subtract fraction parts of mixed numbers before adding or subtracting the whole number parts. In this fractions lesson, students learn to use a ruler to help them add and subtract fractions with like denominators.
Curated OER
Addition and Subtraction Up to Two-Digits
In this finding the sums and differences worksheet, students write the equations in the ones and tens columns and solve and also solve vertical problems with and without regrouping. Students solve 18 problems.
Curated OER
Two-Digit Addition and Subtraction No Regrouping (A)
For this addition and subtraction worksheet, students find the sums and differences by adding and subtracting two-digit numbers with no regrouping. Students solve 36 problems.