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...
Resources for Educators
Math & Science Connection
Whether you're using a collection of Dr. Seuss books to teach basic math skills like counting, adding, and subtracting, or exploring the different states of matter by melting a crayon with a hairdryer, a series...
Curated OER
Tens and Ones
Learners view three problems involving adding or subtracting with ones and tens. Each problem is followed by an explanation and an answer as to how the problem should be done. Note: This resource contains incorrect grammar and could be...
Curated OER
Title Balancing With Tidy Numbers
Students use math manipulatives (ice block sticks) to show the addition of two 2-digit numbers.  They discuss short-cuts that might be used to make the problem easier.  they apply the same principle for adding larger numbers, as well.
Curated OER
Addition Up to 10: Speed Race 3 and 4
In this addition worksheet, students find the sums to 20 single digit addition problems. They try to work more quickly than the previous day.
Curated OER
Single Digit Addition
In this addition learning exercise, students solve 20 problems in which single digits are added. These are basic addition facts in a vertical format.
Pennsylvania Department of Education
Adding and Subtracting Rational Numbers to Solve Problems
Students explore the concept of probability.  In this probability instructional activity, students use area to determine probability.  Students use charts and spinners to help determine the probability of events such as...
Curated OER
Adding Three Digits
Second graders use cards to create 3-digit addition problems and add them together. In this addition lesson plan, 2nd graders add numbers with and without regrouping. Students use a deck of cards to play an addition game in pairs. A very...
Curated OER
Addition of 2 Digit Plus 1 Digit (No Regrouping)
Students review adding without regrouping the numbers. They are divided into groups and have to write the answer to the problem given on their papers.
Curated OER
Addition
In this mental addition worksheet, learners read the method for adding a series of three 2 digit numbers without paper and pencil. Students solve 16 mental addition problems.
Curated OER
Number Ladder: 2 More
In this number ladder activity worksheet, students add the number 2 to the numbers 1-10. The problems are arranged to resemble a ladder and a number line is provided.
Curated OER
Addition Up To 10: Speed Race 3 And 4
In this addition worksheet, 1st graders complete 2 sets ten one digit addition problems in a speed race. This worksheet is meant to be a timed addition to 18 worksheet.
Curated OER
The Summer School Math Worksheets-Multiplication, Division, Fractions Level 5
For this summer school math worksheet, learners complete 100 multiplication problems in which 3 digit numbers are multiplied by 2 digit numbers. Students also solve 100 problems in which simple fractions with unlike denominators are...
Curated OER
Simple Addition Using Hundredths 2
In this addition with decimal tenths practice worksheet, students practice their computation skills as they solve 40 problems that require them to add 3 or 4-digit decimal numbers.
Curated OER
Learning to Add and Subtract
Young learners practice addition and subtraction to solve problems. They use a webquest application to model how to solve math problems using pictures, words and numbers, and also practice using multiplication and division.
Curated OER
Worksheet #10
In this mathematics worksheet, 2nd graders solve various problems by either adding or subtracting when necessary two-digit terms. They use a number line at the top for help solving each.
Curated OER
Math in English Skills VII Exercise Book
A great way to help struggling learners with long division is to provide graph paper. These worksheets provide handy boxes to help kids keep all that great work in the right order. It also provides over 20 worksheets to help pupils...
Helping with Math
Addition: Number Bonds to 20
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of  41 missing addend problems. Answers are available.
DK Publishing
Addition Practice #3
If you're in search of some basic addition drills, take a look at this for your second and third graders. There are 20 vertically aligned equations here, each with one three-digit addend and one...
Math Learning Center
Addition Strategies
Help young mathematicians refer to simple addition strategies with a set of math posters. The pages feature ways to remember how to add zero to a number, how to determine if a number is odd or even, and making fast tens.
Curated OER
Choosing the Operation: Add or Subtract
Try a new approach to addition and subtraction by giving scholars the numbers but leaving out the sign. They must determine if the numbers have been added or subtracted, then write in the appropriate operation. There are a few examples...
Kelly's Kindergarten
July Daily Activities
Concerned about your learners forgetting what they've learned during summer vacation? Use a learning guide to keep them busy every day of the week. With activities about writing, drawing, counting, adding, and time, your kids will be...
Florida Center for Reading Research
Fluency: Letter Recognition, Speedy Alphabet Arc
On your mark, get set, match! Learners use a complete set of letters, matching each to its outlined letter on an arc. As they choose letters, they name them aloud. For added difficulty, another arc is missing most of its letters to...
Curated OER
Domino Adding
Students practice adding numbers to twelve. For this computation lesson, students construct paper domino patterns and play games in which they use the the dots on the dominoes to make addition problems.