Curated OER
Internal Spatial Structure of Cities
Students examine the internal spatial structure of cities. In groups, they analyze patterns of functions, structure and characteristics of settlement patterns. They also identify the population densities of land value of business...
CK-12 Foundation
Ck 12: Elem Math: Comparing With Two Step Addition and Subtraction Word Problems
[Free Registration/Login may be required to access all resource tools.] The video is a 2 part word problem using addition and subtraction of 2-digit numbers. The video is followed by practice problems to assess student understanding of...
NumberNut
Number Nut: Subtraction: Single and Double Digit Subtraction
A quiz where the player reads a subtraction word problem with one- and two-digit numbers, and then picks the correct answer.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
Illustrative Mathematics
Illustrative Mathematics: Saving Money 2
The purpose of this task is for young scholars to relate addition and subtraction problems to money and to situations and goals related to saving money. A problem is given that will contain multiple solutions, this allows students to...
Other
Nearpod: Addition & Subtraction: Winter Edition
In this lesson plan, 2nd graders will use keywords and the part-part-whole model to solve addition and subtraction word problems with 2-digit and 3-digit numbers.
CK-12 Foundation
Ck 12: Elem Math: Subtracting One Digit Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to solve a subtraction problem by creating a model. The video is followed by a series of practice questions to assess student comprehension of...
CK-12 Foundation
Ck 12: Elem Math: Subtracting One Digit Numbers in 2 Steps Word Problems
[Free Registration/Login may be required to access all resource tools.] Practice problems where students subtract one-digit numbers in two step word problems. A helpful video pops up if students are solving the problems incorrectly to...
Primary Resources
Primary Resources: Addition and Subtraction Higher Numbers
An extensive selection of teacher resources to aide in teaching and reviewing addition and subtraction of two and three digit numbers, inverse operations, counting on, and other mental strategies for addition and subtraction. Resources...
CK-12 Foundation
Ck 12: Elem Math: Mixed Operations Addition and Subtraction I Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to solve a word problem with addition and subtraction of two-digit numbers. The video is followed by a series of practice questions to assess...
CK-12 Foundation
Ck 12: Elem Math: Subtracting 3 Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a subtraction two-digit word problem with subtracting 3 numbers. The video is followed by additional problems for students to...
Teaching Treasures Publications
Teaching Treasures: Year Two Timed Mental Math (Page 3)
Increase your addition and subtraction speed using this timed interactive worksheet. With just ten problems and five minutes, this worksheet is suitable for practice or as an assessment tool. Check your answers immediately.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Three or More Numbers
[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students are given word problems where they have to add or subtract 3 or more 1-digit numbers.