Curated OER
Add and Subtract within 1000
Here are some practice problems with adding and subtracting three-digit numbers. Scholars complete three addition problems and three subtraction problems. None of these involve carrying over or regrouping. There are only two numbers to...
Curated OER
Subtraction With Integers
This thorough introduction to the concept of subtracting negative integers walk learners through the necessary steps using teacher modeling and guided practice. Number lines and various word problems are used to support understanding of...
Curated OER
Mentally Add and Subtract 10 or 100
Here are some number lines that need to be completed. There are two number sequences, one to test addition skills and the other for subtraction. Both sequences include counting by 10, but the subtracting question has scholars count...
Curated OER
Add and Subtract within 20
The sums and differences only reach 20 in this arithmetic worksheet. Scholars answer 10 simple number sentences, some involving two numbers and others with three. They choose the correct answer from a list on the right. There are the...
Curated OER
Mentally Add and Subtract 10 or 100
Don't let the title of this one fool you; scholars skip count only by 10 in this number sequence worksheet. They fill in missing numbers on a number line to complete each sequence, adding or subtracting 10. There are two addition...
Curated OER
Dividing with Fractions
Use paper strips or models to relate division problems to division of fraction problems. Since the materials can be broken up, it helps them to show how they can complete repeated subtraction with fractions and not just whole numbers.
Curated OER
UK Number Problems
Young mathematicians can work these word problems to practice applying their two-digit multiplication and division to the 12s. Designed for use by learners in the UK, money problems are in denomination of pounds and pence, and cultural...
Curated OER
Add and Subtract Money - Word Problems
For this simple word problem worksheet, 3rd graders solve 4 problems using addition or subtraction, showing their work in the spaces provided. An answer key is provided.
Curated OER
So Many Cats!
First graders listen to the book, So Many Cats, and discuss the number of cats in the story. They demonstrate simple addition problems using cat counters and a work mat in the shape of a house.
Curated OER
Handcarts - A Unique Form of Transportation
An interesting historical fact about how handcarts benefitted to the Mormon pioneers is the context behind this math lesson. Using given facts and figures regarding the handcart, pupil pairs create math word problems, share them with the...
Pennsylvania Department of Education
Multiplication Using Arrays
Explore the concept of multiplication by using arrays. Classmates use arrays to gain a better understanding of multiplication. They break arrays apart to model the distributive property of multiplication over addition. The relationship...
Curated OER
Adding and Subtracting Fractions 1
In this adding and subtracting of fractions worksheet, students add and subtract fractions with unlike denominators. Students complete 16 problems total.
Curated OER
Adding and Subtracting Decimals 2
In this adding and subtracting decimals worksheet, students add and subtract numbers with decimals up to 4 digits. Students complete 16 problems.
Curated OER
Add and Subtract Equations
One of these addition number sentences is incorrect: which one is it? Beginning mathematicians examine two simple equations, circling the one that is correct. An explanation on the bottom walks them through the processing, including...
Curated OER
Real-Life Problems
Introduce scholars to addition and subtraction word problems with visual guidance. There are five scenarios here, each with a picture to guide scholars as they solve. An example encourages kids to physically interact with the images,...
Curated OER
Adding and Subtracting Fractions 1
In this adding and subtracting of fractions worksheet, students add and subtract fractions containing one and two digit numbers and unlike denominators. Students complete 16 problems.
Curated OER
Adding and Subtracting Decimals 2
In this adding and subtracting of decimals worksheet, students add and subtract numbers containing decimals up to 4 digits. Students complete 16 problems.
Curated OER
Find My Family
For this fact family worksheet, students draw lines to match math facts in the left and right columns to the answers which are written on pictures of puppies shown in the center. They find both sums and differences.
Curated OER
Pattern Puzzles
A short video introduces place value in addition and subtraction. As a class, your young scholars identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the...
Curated OER
Alexander Used to Be Rich
Reading Alexander, Who Used to Be Rich Last Sunday, launches this instructional activity appropriate for children who recognize coins and have been introduced to coin values. Using addition and subtraction skills, the class tracks...
Buffalo State
Adding and Subtracting Integers Unit
Just because one integer is larger than another doesn't mean it will make sense right away. Go beyond note taking and show learners, through the use of algebra tiles and a Four-Pan Algebra Balance, how the numbers relate to one...
Curated OER
A Fictional History of Place Value
Your class can explore standard and expanded notation, as well as computation with regrouping. They listen to a make-believe story about cavemen and the origin of numerals and place value. Then apply what they learned about renaming and...
Virginia Department of Education
Mathematics Vocabulary Cards – Grade 4
An excellent way to reinforce math vocabulary in your classroom! Seventy-eight posters focus on number and number sense, computation and estimation, measurement, geometry, probability and statistics, and patterns, functions, and algebra.
Curated OER
A Sum of Functions
Collaborative learners will see the geometric addition of functions by graphing the sum of two graphed curves on the same coordinate plane. This task then naturally flows into giving learners the algebraic representation of the curves...