Worksheet
Curated OER

Tricky Twenty Triangle

For Students 3rd - 5th
For this triangle number puzzle worksheet, learners place the digits 1 - 9 in each box so that every side of a triangle add up to 20. They place number at each vertex with two digits between them.
Lesson Plan
Curated OER

Cuisenaire Rods And Math

For Teachers 3rd - 5th
Students find the least common multiple of several given numbers using Cuisenaire rods. Previously taught math skills are reinforced by using Cuisenaire rod games, puzzles and or activities.
Lesson Plan
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Transportation Math

For Teachers 4th - 6th
Students practice their problem solving skills. In this addition and subtraction lesson, students solve story problems regarding the delivery of consumer goods.
Worksheet
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Let's Practice Our Math!

For Students Pre-K - K
In this addition and subtraction worksheet, students solve 5 problems in which objects in sets are counted and added or subtracted. There are no number sentences, just picture clues. Students write the sum or difference.
Worksheet
Curated OER

Let's Add

For Students K - 1st
In this math worksheet, students solve twelve addition problems. For each problem, students add a one-digit number to another one-digit number.
Lesson Plan
Curated OER

A New Set of Numbers

For Teachers 6th
Sixth graders add and subtract positive and negative integers. In this integers math lesson, 6th graders review the number line as a class, with students representing the numbers and moving in a positive or negative direction to find...
Worksheet
Curated OER

Addition Trick with Negative Numbers

For Students 9th - 10th
In this algebra worksheet, learners solve word problems that combine rules about adding a negative number. There are 16 questions with an answer key.
Lesson Plan
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Study Buddies: Adding Decimals

For Teachers 2nd - 3rd
In this math worksheet, students will work with a coach to add numbers with decimals to the hundredths place. Students will follow a step-by-step process and notes are provided for the coach.
Interactive
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Runaway Math Puzzles

For Students 1st - 2nd
In this addition sentences worksheet, students write addition sentences to solve the addition word problems. Students solve 4 problems.
Interactive
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Runaway Math Puzzles

For Students 1st - 2nd
For this addition sentences worksheet, students use the number lines to help them find the sums for the double and single digit addition problems. Students solve 31 problems.
Lesson Plan
Virginia Department of Education

Inductive and Deductive Reasoning

For Teachers 9th - 11th
Introduce pupils to the two types of reasoning, inductive and deductive. Classmates work in pairs or small groups to learn the difference between the two and apply these reasonings to develop valid conclusions. 
Worksheet
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Addition Squares #2

For Students 2nd - 3rd
For this addition square worksheet, students fill in the squares so the sums are correct on the right side and at the bottom. Students complete 5 squares.
Worksheet
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Math Pyramid

For Students 3rd - 5th
In this math worksheet, students practice solving the problems by finding the values of the numbers listed in each of the six pyramids.
Worksheet
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Sunshine Math-- 5

For Students 5th - 6th
In this math review worksheet, students solve 8 varied problems that include adding mixed numbers, money, decimals, elapsed time. and a math puzzle.
Worksheet
Curated OER

Integer Computation

For Students 5th
In this integer computation worksheet, 5th graders solve and complete 14 different problems that include solving various types of integers. First, they use the code in the columns to solve the 3 puzzles at the bottom of the sheet....
Lesson Plan
Curated OER

Proving Quadrilateral Properties

For Teachers 9th - 11th
Working backwards can sometimes help you see a path to solving a problem. In this chapter, properites of quadrilaterials are proven by looking at flowcharts and working the probem backwards. Worked through examples are given, along with...
Worksheet
Curated OER

Integer Magic Squares

For Students 1st - 5th
In this math learning exercise, learners find the values along the diagonals using integers to become the sum known as the magic number.
Worksheet
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Valentine's Day Chocolates Mystery: Sums to 198 (A)

For Students 2nd - 3rd
For some Valentine's Day math fun, students solve a puzzle to find how many chocolates are in the candy box. Students add two digit numbers to other two digit numbers, and each answer over 98 represents a candy in the Valentine's candy box.
Worksheet
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Three+Four=Seven

For Students 7th - 10th
In this math cryptogram worksheet, students add the words three and four to get the word seven. Each letter stands for a different number.
Worksheet
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Four + One = Five

For Students 9th - 10th
In this algebra learning exercise, students decipher a cryptarithm to make an addition problem. They have to figure out what digit each letter represent to be able to solve this problem. There is an answer key with this problem.
Worksheet
Curated OER

Secret Trail

For Students 3rd - 5th
In this addition worksheet, students find the secret trail on the grid from the starting number to the ending number by adding  a trail of numbers. Students complete 12 problems.  
Worksheet
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Cryptarithm

For Students 9th
  In this algebra worksheet, 9th graders solve the cryptarithm of five states to come up with an addition problem where each letter has a certain value. There is an answer key to this riddle    
Worksheet
Curated OER

Properties of Numbers

For Students 9th - 11th
In this algebra worksheet, learners use arithmetic properties to solve problems dealing with multiplication, addition, subtraction and division. There are 10 questions with an answer key.
Worksheet
Curated OER

Calculus Cryptogram

For Students 11th - Higher Ed
For this calculus worksheet, students solve an intriguing cryptogram comprised of the addition of calculus vocabulary words. There is 1 cryptogram and solution.