K-5 Math Teaching Resources
2-Digit Addition Template
Learning two-digit addition isn't about memorizing steps, it's about understanding place value. Support the development of your class's number sense with these addition mats that help children break apart two-digit numbers into tens and...
Math Salamanders Ltd.
Column Addition: Money 3 Digits
Math whizzes solve 20 addition problems. Each problem has two money amounts added in vertically lined up columns.
CK-12 Foundation
Addition and Subtraction of Polynomials: Sliders
Slide the coefficients to determine sums of polynomials. The interactive contains sliders to change the coefficients of an addend in a polynomial addition problem. Pupils determine the coefficients of the addend to arrive at particular...
Mental Arithmetic
Mixed Addition and Subtraction Year 1
Reinforce addition and subtraction with a 30-problem arithmetic worksheet in which scholars add and subtract numbers between one through 10.
CK-12 Foundation
Addition and Subtraction of Polynomials: Adding Polynomials
Stack the like terms to add vertically. The resource contains a visual aid to help with the addition of polynomials using the vertical method. Pupils use the aid to calculate the sum of two polynomials.
Math Salamanders Ltd.
Column Subtraction (No Regrouping) 3 Digits Sheet 1
For this column subtraction activity, students subtract three-digit numbers from each other without regrouping. Students complete 15 subtraction problems.
Math Salamanders Ltd.
Column Subtraction - Money 3-digits Sheet 1
Elementary schoolers subtract 3-digit numbers representing money from each other. They complete 20 subtraction problems with decimals and regrouping.
Curated OER
Column Addition Money 4 Digits Sheet 4
In this column addition worksheet, students add four-digit numbers together with decimals that represent money. They then turn the horizontal problems into vertical problems and complete 20 of them.
Math Worksheets Land
Add and Subtract Multi-Digit Whole Numbers
Help young mathematicians see the value in addition and subtraction. Offering one addition and one subtraction problem, this worksheet walks students step-by-step through the solutions of each, starting in the ones place and working...
Math Salamanders Ltd.
Column Addition - 3 Digits Sheet 5
In this addition activity, students add two and three-digit numbers together and convert them from horizontal to vertical problems. Students complete 12 addition problems with regrouping.
Royal Baloo
Star Wars K-2nd Math Pack
Included in a Star Wars themed packet, young padawans enhance mathematical skills such as graphing, computing using basic operations, counting numbers and money, telling time, and measuring. Scholars play a game of sudoku, read...
Math Salamanders Ltd.
Column Subtraction 3 - Digits Sheet 2
In this subtraction worksheet, students practice subtracting in columns. Students complete the worksheet by solving twelve three-digit subtraction problems.
Math Salamanders Ltd.
Column Addition - 4 Digits Sheet 6
Students complete a set of 12 problems, adding three and four-digit numbers. Problems must be arranged vertically and solved. A reference website is given for additional activities.
New Mexico State University
Number Rights
You do not have to be whole to be important. Individuals watch a video on the importance of rational numbers on the number line. Scholars use their knowledge to rename numbers on the number line as well as place rationals on a number...
EngageNY
The Computation of the Slope of a Non-Vertical Line
Determine the slope when the unit rate is difficult to see. The 17th part of a 33-part series presents a situation that calls for a method to calculate the slope for any two points. It provides examples when the slope is hard to...
Math Salamanders Ltd.
Column Subtraction - 3 Digits Sheet 3
For this column subtraction with three-digit worksheet, students solve fifteen subtraction problems with three-digit numbers using regrouping.
Math Salamanders Ltd.
Column Subtraction (No Regrouping) 3 Digits Sheet 2
In this subtraction activity, students complete a set of 15 problems by subtracting two and three-digit numbers; no regrouping is required. A reference website is given for additional activities.
EngageNY
The Geometric Effect of Some Complex Arithmetic 1
Translating complex numbers is as simple as adding 1, 2, 3. In the ninth activity in a 32-part series, the class takes a deeper look at the geometric effect of adding and subtracting complex numbers. The resource leads pupils into what...
Mathematics Vision Project
Module 7: Modeling with Functions
The sky's the limit of what you create when combining functions! The module begins with a review of transformations of parent functions and then moves to combining different function types using addition, subtraction, and...
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
A Rectangle in the Coordinate Plane
A quadrilateral is drawn on the coordinate plane, and eighth grade geometers find the length of each side and the diagonals by applying the Pythagorean theorem.
Mathematics Vision Project
Module 6: Congruence, Construction, and Proof
Trace the links between a variety of math concepts in this far-reaching unit. Ideas that seem very different on the outset (like the distance formula and rigid transformations) come together in very natural and logical ways. This...
Calvin Crest Outdoor School
Survival
Equip young campers with important survival knowledge with a set of engaging lessons. Teammates work together to complete three outdoor activities, which include building a shelter, starting a campfire, and finding directions in the...
Cool Math
Coolmath: Coolmath4kids: Scratch Addition
Demonstrates a method for easily adding long vertical columns of numbers. Includes two sample problems to try.