Worksheet
Curated OER

A Frightening Mix of Math, A-Add or Subtract, But Look Out for the Monsters

For Students 2nd - 3rd
In this math instructional activity, students add and subtract. Fifteen problems are subtraction, students subtract two digit numbers from three digit numbers. Regrouping is required. Twenty-one problems are addition, students add two...
Worksheet
Curated OER

A Frightening Mix of Math

For Students 1st - 2nd
In this addition and subtraction worksheet, students add or subtract two digit numbers by two digit numbers. The worksheet has 36 problems for the students to practice the skill. The worksheet is Halloween themed.
Worksheet
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Missing Digit Operations (B)

For Students 4th - 6th
In this multiple operations math worksheet, students use their math skills to solve 30 problems by filling in missing digits. Students should pay close attention to operation signs as there are addition, subtraction, multiplication, and...
Worksheet
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Curated OER

Easter Bunny Feeding Time: Missing Digits [C]

For Students 2nd - 3rd
In this missing numbers worksheet, learners fill in missing digits in addition, subtraction and multiplication problems. Answers included on page 2.
Worksheet
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Curated OER

Easter Bunny Feeding Time: Missing Digits [D]

For Students 2nd - 3rd
In this missing numbers learning exercise, students fill in missing digits in addition, subtraction and multiplication problems. Answers included on page 2.
Worksheet
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Match up

For Students 4th - 6th
In this subtraction activity, learners solve 3 digit subtraction problems and then match them up with their related addition equations. Students complete and match 6 problems and answer 1 question.
Lesson Plan
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A Secret Code

For Teachers 2nd - 3rd
In this addition and subtraction worksheet, students solve for problems to complete the riddle about George Washington.  Students solve 20 two digit problems of addition and subtraction with some regrouping necessary.
Lesson Plan
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Number in Statistics

For Teachers 2nd
Second graders add two and three digit numbers. They are taught how to calculate the mean and the midpoint. Students are shown how to calculate symmetrical set of numbers. They are shown a model adding the same to each increases the...
Worksheet
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Differences in amounts

For Students 5th - 10th
For this differences in amounts worksheet, students solve word problems where they figure out differences of amounts of two and three digit numbers. Students complete 10 multiple choice questions.
Worksheet
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Estimating Sums and Differences

For Students 7th
In this estimation of sums and differences worksheet, 7th graders solve 20 different problems that are related to estimation of numbers. They add or subtract each problem as shown. Then, students estimate the sums and differences for...
Interactive
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Simplifying Fractions

For Students 8th - 10th
In this algebra worksheet, students simplify fractions using common denominators. They solve using addition and subtraction. There are 6 questions with an answer key.
Lesson Plan
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Chart Trivia

For Teachers 1st - 3rd
Learners practice addition and subtraction problems and answer questions using greater than and less than. They chart information to create a graph on the computer.
Worksheet
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Math Mammoth End of the Year Test - Grade 3

For Students 3rd
In this comprehensive diagnostic test worksheet, learners examine, study, calculate and solve 38 math problems. They work with a variety of basic math concepts and word problems.
Worksheet
Curated OER

Unit 2 Quantities Review

For Students 9th - 12th
In this quantities in chemistry worksheet, students solve 13 review problems about percent composition, significant digits, the mole, simple and molecular formulas, balancing equations, stoichiometry, limiting reagents and percent yields.
Lesson Plan
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Ten Sly Piranhas: A Counting Story in Reverse

For Teachers 2nd - 3rd
Students solve related addition and subtraction problems. In this addition and subtraction lesson, students use the book Ten Sly Piranhas by William Wise as the source of word problems for students to solve.
Worksheet
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Mental Arithmetic

For Students 2nd - 3rd
In this mental math worksheet, students answer 2 sets of mental math questions about writing whole numbers, place value, counting back and on in tens and addition and subtraction.
Lesson Plan
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One Vs. One Hundred

For Teachers 3rd - 5th
Students explore the concept of place value. They differentiate between digits and their values as it related to addition and subtraction. Through the use of technology and manipulatives students investigate the place value of digits by...
Lesson Plan
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Number Tick Tack Toe

For Teachers K - 3rd
Students practice basic addition and subtraction facts to twelve. They use high level thinking skills to win at the game of tick tack toe. Students review the rules to the game. They use strategy skills to master the game.
Worksheet
Curated OER

Math Card Clues

For Students K - 1st
In this math instructional activity, students solve 11 math card clues. All of the clues involve addition or subtraction. For example, one card reads, "I am zero. Add on 4."
Activity
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Laura Candler

In the Dog House

For Teachers 2nd - 4th Standards
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'...
Printables
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K-5 Math Teaching Resources

Ten Frame

For Teachers Pre-K - 2nd Standards
Engage young mathematicians in building their number sense with this set of ten frame printables. Whether you're teaching pupils how to count, add, or subtract, these tools offer children tremendous support with...
Lesson Plan
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The Multiplier (origin of the algorithm)

For Teachers 4th - 8th
Students explore basic algorithms for addition, subtraction, and multiplication. They use models to demonstrate solving two-digit by two-digit multiplication. Students demonstrate vertical formats to solve multiplication problems.
Lesson Plan
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Number Stories

For Teachers 1st - 2nd
Students write and solve various number stories. They solve number stories using one, two and three digit numbers. Students practice writing sentences using the following 6+1 traits, ideas and content, organization, word choice and...
Lesson Plan
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My Decimal Number

For Teachers 3rd
Third graders brainstorm different ways to represent decimal fractions. They draw on their knowledge of decimal place value, addition and subtraction of decimals, and writing decimals in words and symbols. Students discuss the meaning...