Worksheet
Curated OER

Hands-On: Sums of Angle Measures

For Students 5th - 8th
In this angle measures learning exercise, students solve six word problems where they are given 6 different polygons, some of which are complex, and must determine angle measures in order to arrive at a solution.
Activity
Education Development Center

Sum of Rational and Irrational is Irrational

For Teachers 8th - 9th Standards
Sometimes the indirect path is best. Scholars determine whether the sum of a rational number and an irrational number is irrational. Reading a transcript of a conversation between classmates leads to an indirect proof of this concept.
Worksheet
Curated OER

Of Mice and Men Chapters 3 & 4 Vocabulary

For Students 9th
Before your class reads chapters three and four in Of Mice and Men, have them complete this magic squares activity to review some vocabulary in the upcoming chapters. Twenty-five words are introduced, and learners identify the correct...
Worksheet
Curated OER

Missing addend - sums with 8 and 9

For Students 2nd
In this missing addend worksheet, 2nd graders are given the sums of 8 or 9 and they have to write the missing addends to the addition problem given to them represented by cubes. Students complete 16 problems.
Worksheet
Green Planet Solar Energy.com

Order of Operations 2 - More Practice!

For Students 5th - 7th
Your learners will get plenty of practice calculating expressions remembering to use order of operations in this worksheet.
Worksheet
Curated OER

Sums of 8 and 9

For Students K - 2nd
In this addition worksheet, students solve a total of 25 problems using 1-digit numbers with sums of 8 or 9. regrouping. A website reference for additional resources is given.
Lesson Plan
West Contra Costa Unified School District

Properties of Multiplication

For Teachers 3rd - 5th Standards
Unlock the keys to fluent multiplication with this upper-elementary math instructional activity. After an introduction to the five properties of multiplication, learners match cards with different math problems to posters...
Lesson Plan
Bob Prior

The Order of Operations

For Teachers 6th - 8th Standards
Your learners use many different number representations like positive and negative integers, exponents, radicals, and combinations of operations as they learn and strengthen their use of the order of operations. Thoughtfully organized to...
Worksheet
Curated OER

Sum of Interior Angles

For Students 10th
In this sum of interior angles learning exercise, 10th graders solve 10 different problems that are related to determining the sum of various interior angles in figures. First, they determine the sum of the interior angles of a...
Worksheet
Curated OER

Estimating Sums of Money

For Students 4th - 6th
By rounding, scholars find that adding money amounts becomes a breeze! They round two and three-digit numbers (with decimals) in these addition problems to get approximate sums. For each, mathematicians write the new addition equation...
Activity
Education Development Center

Consecutive Sums

For Students 6th - 7th Standards
Evaluate patterns of numbers through an engaging task. Scholars work collaboratively to determine a general rule reflecting the sum of consecutive positive integers. Multiple patterns emerge as learners explore different arrangements.
Lesson Plan
EngageNY

An Application of Linear Equations

For Teachers 8th Standards
Just how far will the Facebook post go? Lead a discussion on how to manipulate the sum of a geometric series to figure out a formula to find the sum at any step. The plan contains an alternative to the discussion with more...
Worksheet
Curated OER

Odd Or Even Sums

For Students 2nd - 3rd
Build strong number sense through pattern recognition. Learners investigate whether the sum of each problem will be odd or even if they add certain combinations of numbers together. They complete 12 problems, adding odd+odd, odd+even, or...
Worksheet
Curated OER

Sums of 8 and 9

For Students K - 2nd
In this addition worksheet, learners solve a total of 100 problems using 1-digit numbers whose sums equal 8 or 9. A website reference for additional resources is given.
Worksheet
Curated OER

Sums of 8 and 9

For Students 1st - 2nd
In this addition worksheet, students solve a total of 50 problems that have sums of either 8 or 9. A reference website for additional resources is given.
Worksheet
Curated OER

Hidden Sums

For Students 1st
In this finding the sums 7 and 8 worksheet, 1st graders look over two boxes of numbers, find the sums of 7 and 8 in each one and circle pairs of numbers that make each sum.
Worksheet
Curated OER

Addition Finding Sums of 10

For Students 2nd - 4th
In this addition worksheet, students solve a total of 20 problems adding 3 numbers by first finding sums of 10. A website reference for additional resources is given.
Worksheet
Curated OER

Addition Finding Sums of 10

For Students 2nd - 3rd
In this addition instructional activity, students solve a set of 14 problems using 3 numbers by first finding sums of 10. A website reference for additional resources is given.
Lesson Plan
EngageNY

Sums and Differences of Decimals

For Students 6th Standards
Sometimes dealing with decimals is so much easier than dealing with fractions. The ninth lesson in a 21-part module has the class consider situations when it might be easier to add or subtract fractions by first converting to...
Worksheet
Curated OER

Chapter 8 - Objective 5 - Sum of Numbers

For Students 8th - 12th
In this sum of the numbers learning exercise, students write equations to determine the sum of numbers under given situations. They use the distributive property to solve two-step algebra problems. This one-page learning exercise...
Worksheet
Curated OER

System of Equations-Elimination Using Multiplication

For Students 8th - 11th
In this system of equations worksheet, students solve 9 problems using the multiplication elimination method. Students are then asked to setup and solve 2 system of equations word problems using the elimination method.
Worksheet
Curated OER

Find the Sums (Under 100)

For Students 1st - 2nd
All of these sums are under 100: learners practice with three types of addition problems, each with two equations. First, they add a double-digit and single-digit number. Then, scholars add two double-digit numbers, one being a multiple...
Lesson Plan
EngageNY

The Order of Operations

For Teachers 6th Standards
Future mathematicians learn how to evaluate numerical expressions by applying the order of operations. They evaluate similar-looking expressions to see how the location of parentheses and exponents affects the value. 
Lesson Plan
Curated OER

Signed Numbers and Order of Operations I

For Teachers 8th - 9th
For this signed numbers worksheet, learners simplify equations by using the indicated operation. They add, subtract, multiply, and divide equations containing two to four positive and negative integers. Three of the 25 equations contain...