Curated OER
Integer Addition
Seventh graders explore the concept of integer addition. In this integer addition lesson, 7th graders tell stories involving addition and subtraction. Students walk on a number line given directions such as add 3 or add -2. Students play...
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Raytheon
Adding and Subtracting Decimals
For this adding and subtracting decimals instructional activity, students add and subtract numbers with decimals in word problems. Students complete 12 word problems.
Primary Resources
Grid Multiplication
Ever have a completely confused fourth grader ask about multiplying a 3-digit by a 2-digit number? This slide show could really help clear things up. The grid or box method is fully demonstrated and explained in this straight forward...
Maths Blog
Make 20
There are quite a few ways to make the number 20 through addition. Learners fill in missing addends to reach the sum of 20 then answer additional related questions. This is a good resource because it has the class both add to 20 and...
Curated OER
Adding Multiple Digits Practice Sheets A and B
In these two finding the sums worksheets, students add two-digit and three-digit numbers with regrouping and four-digit and five-digit numbers with regrouping. Students solve 39 problems.
Curated OER
Secret Country Code Breaker
Super cool and totally fun math awaits your class. They are the code breakers, and their job is to identify and locate the secret agent by breaking two different codes. They use all their skills to solve a series of double-digit addition...
McGraw Hill
Adding and Subtracting Radicals
Help remove some of the confusion surrounding the addition and subtraction of radical numbers with this set skills practice problems. Taken straight from the pages of a math text book, this resource provides learners with numerous...
Curated OER
Adding Decimals
Explore the practical uses of adding numbers with decimals as scholars add measurements and money. The first 12 equations are written vertically with half the sums requiring a dollar sign and half a unit of measurement. The next six are...
Curated OER
Adding Decimals
Adding decimals can be simple; show scholars the practical uses of adding numbers with decimals as they add measurements and amounts of money. The first eight equations are written vertically with some sums requiring a dollar sign, some...
Houghton Mifflin Harcourt
Sums to 100
Whether it's counting marbles, flowers, or playing cards, small objects can add up to great sums. Learners work six story problems to practice addition to 100. Some regrouping is required, along with distinguishing useful from irrelevant...
Curated OER
Fractions 2
A well-composed and professional resource can be a wonderful way to add importance to a topic. This presentation is very well done and acts as an assignment which can be completed individually or during whole-class instruction. Learners...
Curated OER
Doubles
These dragons work as math machines as scholars multiply numbers using given functions, which remain the same for these: double it. Using an example as their guide, learners double three whole numbers, none of which exceed 11, for each...
Curated OER
Addition Practice #5
Find the sum, no problem! Your class will add single digit to double digit numbers to determine the sum for 30 practice problems.
Curated OER
How Many?
Working with numbers 1-10, beginning counters complete five exercises to help them hone their skills. They examine two sets of sports balls, circling the ones at various number positions. Next, they count a set of ladybugs, recording the...
Curated OER
Thanksgiving Addition
If you are teaching two-digit addition, this would be a good worksheet for you to consider using. Pupils add 19 problems. Each problem has three addends of two-digits each. An answer key appears on the second page of the packet.
Curated OER
And 4 More Makes...
How many will there be if we add four more? Scholars examine sets of sports balls, drawing four more and totaling them. Sums in these four problems don't exceed 10, and the numbers 0-10 are written below for learners to reference as they...
Curated OER
More and Less
Mental mathematicians add and subtract 1, 10, and 100 from sets of numbers. Each set of one, two and three-digit numbers gives scholars a chance to practice their addition and subtraction skills. There are 62 whole numbers in all. What...
Curated OER
Fraction Follies
Explore the multiplication and division process for fractions with this interactive presentation. Through visual fraction problems, your math learners will uncover common assumptions and errors in computing fractions and how to avoid...
West Contra Costa Unified School District
Decimals and Fractions
Reinforce the concept of fractions and decimals as part of a whole with a lesson that begins with a mixed review, then goes into a three problem guided practice, and ends with a collaborative activity. The guided practice and activity...
Curated OER
Matrix Madness!!
Perform operations to add, subtract, multiply and divide matrices. Then solve problems with vectors using matrices. A three day lesson: Matrix Madness, Mystical Matrices, and Decode the Encode. The last lesson has prizes that the class...
Curated OER
Adding Money
Show young economists that adding money is just like adding the numbers they are used to. They complete two addition tables, adding monetary values under 50 cents. There are a couple done for them to give guidance, but learners must...
Curated OER
Adding and Subtracting Mixed Fractions (B)
Here is an adding and subtracting mixed numbers worksheet in which learners find the sums and differences of mixed numbers with uncommon denominators. They solve 10 problems.
Math Doctor
Chapter 5: Decimal Notation
Explore all things decimal in this thorough series of introduction activities. Including scripting for the teacher and detailed descriptions and examples, the plan begins by reviewing the basics of place value and writing fractions as...