Curated OER
I Want It All!
Third graders understand the economics of choices in buying. In this goods and services lesson, 3rd graders participate in activities to make choices about purchases. Students write stories, answer questions, and complete worksheets to...
Curated OER
See how They Grow: Butterfly
Students view butterflies and participate in a butterfly activity to learn needed vocabulary. In this butterfly life cycle activity, students access prior knowledge of butterflies. Students listen to a butterfly life cycle book....
Curated OER
Counting and Calculating
In this math worksheet, students follow the basic activities that are shown in the planning guide written for the teacher. The plan is written in the form of a unit.
Curated OER
Let's Take a Trip!
Sixth graders plan trip for family of four, and choose best travel plan by studying maps, considering different routes, and visiting Web sites to get airline and travel schedules.
Curated OER
Which Fraction Am I?
In this fraction worksheet, students read a description of a fraction, then write the fraction on a line beneath the description clue. Students then write about what strategy was most helpful to them.
Curated OER
Riddles
In this riddles worksheet, students answer each of four mathematical riddles with one of the words provided from the word bank.
Khan Academy
Khan Academy: Breaking Apart Two Digit Addition Problems
In this exercise, students practice breaking apart two-digit addition problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Varsity Tutors
Varsity Tutors: Aplusmath: Decimal Subtraction Worksheets
Create customized decimal subtraction worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can...
CK-12 Foundation
Ck 12: Elem Math: Adding Two Digit Numbers Without Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a 2-digit addition problem without regrouping. The video is followed by practice problems.
Varsity Tutors
Varsity Tutors: Aplus Math: Subtraction Worksheets
Create customized subtraction worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can also be...
Illustrative Mathematics
Illustrative Mathematics: Saving Money 2
The purpose of this task is for students 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 think...
Quia
Quia: Subtracting to Win a Million
Students will love playing this "Who Wants to be a Millionaire," style game as they work through the subtraction problems. Some of the numbers are large, but there is no regrouping necessary.
Illustrative Mathematics
Illustrative Mathematics: 4.nbt What's My Number?
The purpose of this task is for students to reason about base-ten numbers on the number line in a way that will require them to use what they know about place value. Students first represent addition and subtraction on the number line in...
Teaching Treasures Publications
Teaching Treasures: Year Four Math (Page 4)
This interactive worksheet that focuses on all four operations including three-digit addition and subtraction and basic multiplication and division facts. This easy to navigate tool gives learners immediate feedback. Problems presented...
Cool Math
Coolmath: Coolmath4kids: Subtracting Numbers Within 100 With Regrouping
A step-by-step tutorial showing how to subtract using two-digit numbers in the tens and ones columns with regrouping. Includes sample problems to try. It also provides links to subtraction games and more.
Teaching Treasures Publications
Teaching Treasures: Year Five Math (Page 2)
Use this interactive worksheet for practice or assessment of basic computation skills. Problems covering all four operations are included such as four-digit addition and subtraction and multiplication and division facts through twelve...
NumberNut
Number Nut: Subtracting More Than Two Values
Get the facts on how to subtract more than two values in this short subtraction lesson. This lesson offers step-by-step examples, suggested strategies and shortcuts, and links to related interactive games. Both games are fast-paced and...
Teaching Treasures Publications
Teaching Treasures: Year Five Math (Page 1)
Practice your computation skills in all four operations using this interactive worksheet. Included are four-digit addition and subtraction problems and multiplication and division facts through twelve tables. Problems are set up...
Teaching Treasures Publications
Teaching Treasures: Year Eight Timed Mental Math
Improve your computation skills using this timed interactive worksheet.
CK-12 Foundation
Ck 12: Elem Math: Adding, Subtracting, and Multiplying With Parentheses
[Free Registration/Login may be required to access all resource tools.] A learning module where students apply the order of operations to solve equations involving addition, subtraction, and multiplication of multi-digit numbers, as well...