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Curated OER
Addition and Subtraction of Money
In this multiple choice worksheet, students read short word problems and add or subtract to determine how much money is represented in each problem.
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Food Chains and Endangered Animals
Students investigate how all links in the food chain are related. In this animal habitat lesson, students hypothesize about what would happen in the food chain if an endangered species were to become extinct. This lesson also includes an...
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Maya Math: Addition and Subtraction
Students examine how ancient Maya counted, and practice addition and subtraction using Maya number glyphs.
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Addition and Subtraction Using Decimal Notation
In this math worksheet, students practice using the operations of addition and subtraction for he number sentences that have decimals.
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Math Match Up!
Help learners solve problems using multiplication and repeated addition. Using counters, learners will be paired up to solve problems. They will go through a series of questions and show models with the counters for the solution. Then...
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Half Math Quilt
Help your third graders become familiar with equivalent fractions for one-half by having them create a quilt. They will use triangles to create a quilt of equivalent fractions over a period of 6 days. As they create the quilt pieces they...
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Same Picture Subtraction and Addition
In this addition and subtraction instructional activity, students make a subtraction and addition sentence for the same picture, then write additional sentences as instructed. A website reference for additional resources is given.
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Summer School Math Worksheets --Addition and Subtraction
In this math instructional activity, students solve 100 addition problems in which 2 digit numbers are added, with and without carrying. Students then solve 100 subtraction problems with 2 digits, with and without regrouping.
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Addition Subtraction
In this sum and difference worksheet, learners find the sum and difference of one digit numbers in word form and in number form. Students complete 11 problems total.
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Inverse Relationships (1)
In this inverse relationships activity, students problem solve thirty inverse mathematical equations involving addition and subtraction.
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Create a Word Problem
In this word problem learning exercise, students study the given addition and subtraction problems. Students then create a word problem for each one.
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Metric Conversion
In this metric conversion worksheet, students problem solve ten mathematical equations involving addition and subtraction with cm and mm.
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Mental Maths
In this counting worksheet, students complete 22 fill in the blank problems where they are given a starting number and count by 1's, 2's, and 10's. Next. students answer 12 fill in the blank addition or subtraction problems where they...
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Shipping on the Hudson
Students track movements of ships, tugboats, and barges on the Hudson River estuary in order to practice addition and subtraction skills. They solve word problems by reading and interpreting data from a table. They calculate distances...
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Making a Ten
An addition table supports third graders as they learn strategies to improve their math fluency. When finding sums greater than ten, students are taught how to first make a ten and then add on the rest. A similar method is also...
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Around the World: Addition, Subtraction, Division, Multiplication
Kids love playing the game Around the World, and now you have a tool to make it even easier. Each slide contains a single addition, subtraction, division, or multiplication problem for learners to solve, the answer appears as you process...
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Real-Life Problems
When did math become so relevant? Scholars choose from four operations to solve five word problems dealing with money and measurements. They show their work in a designated space, and must include units in their answers. Learners work...
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The Honeycomb Challenge: Shapes and Colors
Play this game with young English language learners to help them learn color and shape vocabulary. As they make their way around the game board, they talk about the colors and shapes they pass and land on. Add math skills practice by...
Perkins School for the Blind
More or Less
The concept of more or less is one that needs to be mastered prior to learning other concepts such as quantitative analysis, addition, or subtraction. This activity provides several ways to teach learners with low or no vision to...
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Addition and Subtraction sums and differences
In this sums and differences worksheet, students are given a one digit number and they have to make up the addition or subtraction problem to make it equal to the number. Students complete 36 problems.
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Addition and Subtraction Practice
In this addition and subtraction worksheet, students solve 5 problems set up in horizontal form, then solve 5 word problems. All problems add or subtract using 4 digit numbers.
World Wildlife Fund
Take 6
Investigate the various properties of the number six with this elementary math instructional activity. From simple addition, subtraction, multiplication, and division problems to the creation of hexagonal tessellations, this...
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Mentally Add and Subtract 10 or 100
Here are some number lines that need to be completed. There are two number sequences, one to test addition skills and the other for subtraction. Both sequences include counting by 10, but the subtracting question has scholars count...
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Mentally Add and Subtract 10 or 100
Don't let the title of this one fool you; scholars skip count only by 10 in this number sequence worksheet. They fill in missing numbers on a number line to complete each sequence, adding or subtracting 10. There are two addition...