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Helping with Math
Subtraction : 3-digit and 2-digit
Does your class need a little extra practice subtracting two-digit subtrahends from three-digit minuends? Here are 30 practice problems just waiting for answers; some problems require regrouping and some do not.
Curated OER
100 Chart-Math Helper-Skip Counting or Multiples
In this instructional activity, 100 Chart-Math Helper-Skip Counting or Multiples, learners utilize the chart as an aid in counting. This is a resource or manipulative that can be used by learners, and is helpful in many different math...
Curated OER
Math is in the Cards!
Is the rainy day schedule disrupting your class? Here is a great way to practice basic addition, subtraction, and multiplication skills while building automaticity and problem solving. This activity provides the rules to three different...
Curated OER
Math: Working with Mayan Numbers
Students simulate a Mayan market place, and "purchase" items. They keep a record of their purchases and total number of beans left in their account. Students then convert the Mayan base system into the base ten system. This lesson...
Curated OER
Building Tolerance for Poverty in Math
Students explore approximate and exact solutions. In this interdisciplinary lesson, 6th graders will be placed in 'family groups' to create a budget that is subject to random events as chosen from the 'things happen' box. This lesson...
Curated OER
Addition and Subtraction of Whole Numbers
Fourth graders answer word problems based on the fifty states. In this math word problem instructional activity, 4th graders understand that differences in problems require different math operations.
Curated OER
Addition and Subtraction of Rational Expressions
In this rational expressions learning exercise, 9th graders solve and complete 15 different problems that include adding and subtracting rational expressions. First, they define Least Common Multiple to get a common denominator in an...
Curated OER
Number Operations
Inject fun into your math review! Pupils review basic math operations with decimals as well as addition and subtraction with simple fractions. In this number operations instructional activity, students work in groups to create a game for...
Curated OER
That's The Way the Cookie Crumbles
Third graders work with money values and making purchases. In this money instructional activity, 3rd graders listen to Donna Guthrie's book, Real World Math: Money and Other Numbers In Your Life. They make money cookies either with a...
EngageNY
Solving Rational Equations
What do fractions and rational expressions have in common? Everything! Learners use common denominators to solve rational equations. Problems advance from simple to more complex, allowing pupils to fully understand the material before...
EngageNY
Composite Area Problems
The 21st segment in a 28-part series provides learners with area problems involving composite figures. To find the solution, pupils must decide whether to add or subtract areas. The composite figures are composed of quadrilaterals,...
Armory Center for the Arts
Place Value Collage
How can art represent math? Use a lesson on place value collages to illustrate the different meanings that numbers have in their designated places. Kids observe photographs and paintings that show place value, then work on their own.
Curated OER
SPIRIT 2.0 Lesosn: Adding and Subtracting Integers
Six pages prepare you to introduce your math stars to the addition and subtraction of positive and negative numbers. They drive a robot back and forth on an actual number line to represent the operations. If you don't have access to a...
Houghton Mifflin Harcourt
Introducing the Concept: Adding and Subtracting With Negative Integers
A basic narrative is outlined for teaching a lesson on the addition and subtraction of integers. Using a number line, you can demonstrate how to find the sum of a positive and negative integer. On the right side of the page are links to...
Curated OER
Addition and Subtraction
For this addition and subtraction worksheet, students add and subtract three and four-digit numbers with decimals. They justify their answers. This two-page worksheet contains approximately 12 problems.
Curated OER
Addition and Subtraction of Integers
In this integer addition and subtraction worksheet, students solve 120 problems that require them add and subtract using 2 and 3-digit integers.
Curated OER
Addition and Subtraction of Polynomials
In this polynomial worksheet, students add and subtract polynomials by identifying and collecting like terms. Twenty problems are provided on this two-page worksheet.
Alabama Learning Exchange
"Like Terms", I Add Them
Ninth graders add and subtract polynomials. In this Algebra I lesson plan, 9th graders work practice problems as they view a PowerPoint presentation of the lesson plan. Both the horizontal and vertical methods of addition and...
Curated OER
My Test Book: Addition and Subtraction
In this online interactive math skills worksheet, students solve 10 multiple choice math problems that require them to add and subtract using 1 and 2 digit numbers. Students may submit their answers to be scored.
Curated OER
My Test Book: Addition and Subtraction
In this online interactive math skills worksheet, students solve 10 multiple choice math problems that require them to add and subtract using 2-digit numbers. Students may submit their answers to be scored.
Curated OER
My Test Book: Addition and Subtraction
In this online interactive math skills worksheet, students solve 10 multiple choice math problems that require them to add and subtract using whole numbers and decimals. Students may submit their answers to be scored.
Curated OER
Two Minute Mixed Addition and Subtraction
In this addition and subtraction facts worksheet, students solve 80 problems that require them to add and subtract using 1-digit and 2-digit numbers.
Curated OER
Addition and Subtraction within 10
In this addition and subtraction learning exercise, 1st graders add and subtract in word problems up to the number 10. Students complete 20 problems total.
Curated OER
Addition and Subtraction of Rational Expressions
In this rational expression worksheet, students add and subtract rational expressions. Students identify and use the LCM to simplify each expression. Twenty problems are provided on this one-page worksheet.