Curated OER
Subtraction with Three Digits
In this mathematics worksheet, learners solve a number of problems by subtracting three-digit numbers from other three-digit numbers. There are 30 problems to solve on the sheet.
Curated OER
Primary Understanding and Use of Place Value
Explore place value and regrouping with your class. They develop awareness of several ancient number systems and how they differ from the base ten system commonly used today. They play "Chip Trading" with partners to practice addition...
Mathematics Assessment Project
Generalizing Patterns: The Difference of Two Squares
After completing an assessment task where they express numbers as the difference of squares (i.e., 9 = 5^2 – 4^2), class members note any patterns that they see in the problems.
Scholastic
Study Jams! Add & Subtract with Common Denominators
RJ and Zoey are at camp and need to get back to the mess hall for lunch, but they don't know how far they have to walk. Help them figure out the distance while teaching young mathematicians how to add and subtract fractions with this...
Curated OER
Take Whole Tens: Subtraction with a Number Line
A tens number line helps your class understand how to "hop" backward to subtract by 10's. Ten practice equations are expressed as math sentences (in word form) using the expressions "take __ from __" and "subtract." A little cartoon...
Curated OER
Two-Digit Subtraction With and Without Regrouping
Second graders subtract two-digit numbers. In this mathematics lesson, 2nd graders subtract both with and without regrouping. Students use manipulatives and place value mats to assist in problem solving.
Curated OER
Everyday Problems
Bring math into the real world with these scenarios which have scholars adding and subtracting money and measurements. There are five word problems here. One involves three addends, another decimals, and another prompts learners to find...
Curated OER
Numbers and Operations as Words
Teach numbers in word form with this activity. In this numbers and operations activity, learners solve 22 problems in which numbers are written in word form. Students solve the problems and write their responses in word form. Example:...
Curated OER
Subtraction Tables
With several numbers already filled in, this math worksheet is sure to help your first graders with their subtraction. Three grids prompt learners to finish certain subtraction problems and fill in the answers. A great way to reinforce...
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
Yummy Gummy Subtraction
Here is a quick 15 minute instructional activity intended to introduce subtraction. Learners count and subtract gummy bears to complete 5 problems. The lessons suggest that the gummy bears can be saved and used the next day, but gummy...
Curated OER
Subtraction Drills
Here is a great subtraction assignment to use as homework or as a speed trial in your second grade class. After reviewing the basics of subtracting 2-digit numbers in three examples, learners solve 32 problems. Most of the problems...
Mathed Up!
Negative Numbers
Individuals read tables with temperatures and times in order to distinguish the town with the lowest temperature or most extreme temperature difference. Each of the eight questions has three sub-questions that use the same charts.
Curated OER
Fractions Lesson: Understanding Mixed Numbers
A developmentally sound approach to teaching learners the difference between fractions, whole numbers, and mixed numbers. They are shown each type of number then run through a series of slides shouting out the name of that number type....
Curated OER
Add and Subtract to Get Four
Explore the many paths to get to four in this addition and subtraction worksheet! Learners walk through the steps of the options: adding two numbers, adding three numbers, and subtracting two numbers. They examine which numbers could be...
EngageNY
Divisibility Tests for 3 and 9
Who knew the sum of a number's digits gives such interesting information? The 18th installment of a 21-part module has scholars investigate division by three and nine. After looking at several examples, they develop divisibility tests...
Curated OER
Number Lines and Whole Numbers
Number lines are a great way to help scholars grasp basic addition when it's still a new concept. This activity offers them 10 chances to practice this association. The first five have an addition equation and a number line; learners...
Scholastic
Study Jams! Addition with Regrouping
Zoe needs to back up her music collection, but do her friends have enough space on their computers to help? Find out as you teach your class how to add two- and three-digit numbers with regrouping. Place value is emphasized as both the...
Curated OER
A Human Number Line: Student Worksheet
Kids are challenged to make a human number line. They line up, holding numbers from -10 to 10. They then add and subtract both positive and negative numbers, using themselves as the numbers on the number line. This is a great way to...
THUP Games
Monkey Math School Sunshine
Hang out at the beach and listen to some relaxing tunes, all while developing basic math skills. An endless source of fun and learning for young children!
DK Publishing
Writing Equivalent Number Sentences
Connect the four operations with a series of number sentences. After studying the examples at the top of the page, third graders find ways to write related number sentences for addition, subtraction, multiplication, and division...
West Contra Costa Unified School District
Dividing Numbers
Three pages make up a reference page designed to help parents understand the concept of division. Division strategies are showcased using detailed descriptions and labeled examples.
Curated OER
Number Bonds to 10: Game
Knowing number bonds that make 10 is a good way to build number sense and can help in solving basic addition and subtraction problems. Kids review number bonds, then play a game where they are given a number and try to shout out the...
Curated OER
Multiplying Whole Numbers and Decimals
Upper elementary and middle school learners explore number sense by completing a list of multiplication problems in class. Learners discuss the difference between whole numbers and decimals while solving multiplication problems. They...