Curated OER
Prime Numbers and Factors
Solving factor trees is a helpful way to introduce prime numbers. Your math class practices using this method along with two-column tables to find if a number is prime or not. They also learn other vocabulary, such as composite numbers,...
Curated OER
Building 2-Digit Numbers
In this addition worksheet, 2nd graders use the building method to find the sums of 2-digit numbers. They find the totals in 6 examples that have three 2-digit addends in each problem.
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 decimals....
Curated OER
Finding The Sum of an Infinite Series
Students examine finding the sum of an infinite series as the limit of partial sums. Through hands-on activities, students create their own sequence by finding the area of a square and then cutting it in half-sized pieces. They write...
Curated OER
Addition Subtraction 2
In this sum and difference worksheet, students find the sum and differences of equations with whole numbers and variables. Students complete 6 equations.
Curated OER
Adding two numbers
In this addition worksheet, students complete 4 problems where they have to add two single digit numbers less than 10 together to find the sum.
Curated OER
Number Wall
Use the number wall to practice addition, evens and odds, missing addends, and doubling. Learners answer various questions based on six numbers, filling in squares with digits. They list the odd numbers and total them, then list the even...
EngageNY
Rational and Irrational Numbers
Back to the basics: learning how to add numbers. The 17th installment of a 35-part module first reviews addition techniques for rational numbers, such as graphical methods (number line) and numerical methods (standard algorithm). It goes...
Collaborative Learning Project
Four in a Row Addition and Subtraction
Scroll down to find four fun addition and subtraction partner game boards, complete with endless opportunities for practice with numbers 0-38. Kids choose numbers from a number box and, depending on the game, either find the sum or the...
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...
DK Publishing
Subtracting Big Numbers
Do your third graders get nervous when working with larger numbers? Help them get some practice subtracting big numbers in different contexts. After working through twenty-two straightforward problems, four of which include units of...
Curated OER
Add Three Numbers: English Learners
In this ELL, addition worksheet, students solve 1 fill in the blank problem where they must find the sum of three addends which are 1 and 2 digit numbers. A step-by-step example of the addition process is modeled.
Curated OER
Add Two Digit Numbers Horizontally
In this finding the sums worksheet, students add two-digit plus two-digit horizontal numbers with and without regrouping. Students solve 16 problems.
Curated OER
Binary Math - Adding
In this binary math learning exercise, students find the sum of binary numbers. They convert numbers from base two to base ten. This one-page learning exercise contains 10 multi-step problems.
Curated OER
Add Three Numbers
In this addition worksheet, students solve 4 word problems where they must find the sum of 3 addends. The addends are 1 and 2 digit numbers.
Curated OER
Addition
Looking for addition drills for your scholars to practice adding one and two-digit numbers? You've found it! Mathematicians examine an example before finding the sum of 16 equations, each of which involves one 2-digit addend and one...
Curated OER
Addition
Those are some big addends! Challenge students to find the sum of 16 equations, each of which has at least three addends. They are adding, two, three, and four-digit numbers here, and regrouping is a given. Two example problems offer...
Curated OER
Rational Numbers
In this rational numbers learning exercise, 9th graders solve and complete 16 different problems that include adding and subtracting various rational numbers. First, they determine the sum or difference for each equation. Then, students...
Helping with Math
Addition - Four 4-digit Numbers
Stack up those digits and get your fourth graders adding! This printable handout displays 20 addition problems in which pupils find the sum of four four-digit numbers. With a click of the box in the upper left corner of the web page,...
Curated OER
Butterfly Addition: Color by Numbers
Children learning to add numbers up to 11 develop the strategy of using the larger number as the first addend and counting on from there to find a sum. They define addition and review the meaning of the plus (+) symbol. To practice, they...
Curated OER
Adding and Subtracting up to 5 Guided Lesson
Using only numbers up to five, beginners to addition complete four basic number sentences to find the sums of each. This worksheet is unique in that the first two problems are actually written out, and the last two are numerical. As a...
Curated OER
Three-Digit Pus Two-Digit Addition (B)
In this adding three-digit plus two-digit numbers worksheet, students regroup to find the sums. Students solve one hundred problems.
Curated OER
Three-Digit Plus Two-Digit Addition (B)
In this adding vertical numbers worksheet, students find the sums for three-digit plus two-digit numbers with regrouping. Students add one hundred problems.
Curated OER
Addition of Three Numbers; Various Digits (B)
In this finding the sums of three numbers worksheet, students add two-digit, three-digit, and four-digit numbers. Students solve 49 problems.