Lesson Plan
Curated OER

Magic Sum

For Teachers 3rd - 8th
Students calculate two-digit addition problems. They observe a teacher-led demonstration, and solve various problems independently.
Lesson Plan
Curated OER

A Method of Front-End Arithmetic

For Teachers 6th
Teach the class how to add using front-end addition. They are given a shopping list and use it to practice adding from the largest place value to the smallest. Computational math and shopping, what fun!
Lesson Plan
Curated OER

It All Adds Up -- Puzzle #14

For Teachers 4th - 8th
In this addition puzzle matrix worksheet, students insert 8 numbers in the puzzle to make the rows, columns, and diagonals add up to the proper numbers.
Worksheet
Curated OER

Crossmath Puzzles

For Students 3rd - 4th
For this addition and subtraction worksheet, students complete four puzzle squares. Students fill in the blanks to get the answers at the right side and at the bottom. Numbers may only be used once in each row or column.
Lesson Plan
Curated OER

It All Adds Up -- Puzzle #30

For Teachers 4th - 8th
In this addition matrix puzzle worksheet, students insert 8 numbers that make the puzzle add up horizontally, vertically, and diagonally.
Lesson Plan
Curated OER

It All Adds Up -- Puzzle #15

For Teachers 4th - 8th
In this addition matrix puzzle worksheet, students insert 8 numbers into the matrix so the numbers add up diagonally, vertically, and horizontally.
Lesson Plan
Curated OER

It All Adds Up -- Puzzle #18

For Teachers 4th - 8th
In this addition matrix puzzle worksheet, students insert 8 numbers into the matrix so that the numbers add up vertically, horizontally, and diagonally.
Lesson Plan
Curated OER

How Sweet It is! A Colorful Sugar Solution Density Column

For Teachers 6th - 9th
Students examine the affect of density. Using a graduated cylinder and equally prepared volumes of sugar-water solutions and food color, students observe a sugar rainbow. They discover that the greater the amount of sugar in the...
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.
Worksheet
Curated OER

Too gross! Addition Tricks with Derivatives

For Students 11th - 12th
In this calculus worksheet, students evaluate derivatives by playing a game. They pick 4 different derivatives to evaluate and find the sum of the solved derivates to find a number that is gross. There are 12 questions to choose from.
Worksheet
Curated OER

Get Smart!: Addition Tricks with Integrals

For Students 11th - 12th
In this definite integrals worksheet, students find the definite integrals of 16 functions.  Students find definite integrals for a given interval in order to find the name of Maxwell Smart's partner.
Lesson Plan
Curated OER

Add the Problems

For Teachers 1st - 2nd
In this math worksheet, learners practice addition of three 1-digit numbers in a column. There are 12 problems on the page written vertically.
Lesson Plan
Curated OER

Mental Addition And Subtraction

For Teachers 6th
Sixth graders, while in the computer lab, participate in the game ArithmAttack and complete as many additions and subtraction equations as they can in sixty seconds. They access the web site Mathfrog.com and begin their adventure with...
Lesson Plan
Curated OER

Mental Addition and Subtraction

For Teachers 4th
Fourth graders, while in the computer lab, practice the concepts of mental addition and subtraction by participating in an online game that stresses addition and subtraction. They have sixty seconds to answer as many questions as...
Worksheet
Curated OER

Adding One to Nine

For Students K - 1st
Give your students a chance to review their basic addition with these twenty-five problems. All problems include single digits, and some problems add up to ten. The problems are presented as column addition problems, making it an ideal...
Worksheet
Curated OER

Magic Squares

For Students 5th - 6th
In this magic squares worksheet, students solve 3 different magic squares shown on the sheet. First, they identify the numbers already used in each square. Then, students determine which number goes in each blank to equal the same sum in...
Worksheet
Curated OER

Addition of Money (1) : English Pounds and Pence

For Students 3rd - 4th
In this money worksheet, students solve 15 problems in which English pounds and pence are added. Some of the problems will need to be recopied with the decimals lined up.
Worksheet
Curated OER

Addition Squares

For Students 1st - 2nd
In this math worksheet, students practice using logical problem-solving skills in mathematics. The sheet is intended to be a teacher's guide.
Worksheet
Curated OER

Same and Different

For Students 1st - 2nd
For this mathematics instructional activity, students first complete the tens place and then add the rest. Then they continue the patterns and compare each column. Students also fill in the missing addends and solve various word problems...
Lesson Plan
Curated OER

Adding And Subtracting Decimals

For Teachers 4th - 5th
In this adding and subtracting decimals worksheet, students, with a partner, problem solve and calculate the answers to ten addition and subtraction equations or word problems.
Worksheet
Math Salamanders Ltd.

Column Subtraction 3 - Digits Sheet 2

For Students 2nd - 4th Standards
In this subtraction worksheet, students practice subtracting in columns. Students complete the worksheet by solving twelve three-digit subtraction problems.
Worksheet
Curated OER

Addition With Regrouping

For Students 1st - 3rd
In this addition with regrouping activity, students complete a set of 12 problems; all problems are laid out in a "graphic organizer" style box and the tens and ones columns are labeled.
PPT
Curated OER

Calculation Methods 1

For Teachers 4th - 5th
There are so many ways to solve any given math problem. Get your problem-solving basics covered with this handy slide show. Various calculation methods are used to solve multiplication, addition, subtraction, and division problems...
Printables
Student Handouts

Guest and Visitor Sign-In Sheet

For Teachers Pre-K - Higher Ed
A handy sign-in sheet is the perfect addition to your parent conference or open house night. It provides three columns for names, telephone numbers, and e-mail addresses.

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