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Curated OER
Hands-On: Sums of Angle Measures
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.
Education Development Center
Sum of Rational and Irrational is Irrational
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.
Curated OER
Of Mice and Men Chapters 3 & 4 Vocabulary
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...
Curated OER
Missing addend - sums with 8 and 9
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.
Green Planet Solar Energy.com
Order of Operations 2 - More Practice!
Your learners will get plenty of practice calculating expressions remembering to use order of operations in this worksheet.
Curated OER
Sums of 8 and 9
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.
West Contra Costa Unified School District
Properties of Multiplication
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...
Bob Prior
The Order of Operations
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...
Curated OER
Sum of Interior Angles
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...
Curated OER
Estimating Sums of Money
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...
Education Development Center
Consecutive Sums
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.
EngageNY
An Application of Linear Equations
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...
Curated OER
Odd Or Even Sums
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...
Curated OER
Sums of 8 and 9
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.
Curated OER
Sums of 8 and 9
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.
Curated OER
Hidden Sums
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.
Curated OER
Addition Finding Sums of 10
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.
Curated OER
Addition Finding Sums of 10
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.
EngageNY
Sums and Differences of Decimals
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...
Curated OER
Chapter 8 - Objective 5 - Sum of Numbers
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...
Curated OER
System of Equations-Elimination Using Multiplication
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.
Curated OER
Find the Sums (Under 100)
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...
EngageNY
The Order of Operations
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.
Curated OER
Signed Numbers and Order of Operations I
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...