Curated OER
Practice Makes Perfect
In this subtraction and addition worksheet, students solve 4 problems in which subtraction or addition is used to solve story problems. There is regrouping on the page.
Curated OER
Kid Pix Math
Second graders, using Kid Pix, write and illustrate simple addition and subtraction sentences using Kid Pix. After each student has completed his/her work, it is printed out and bound into a class book.
Curated OER
Add or Subtract Whole Numbers Up to 1000
Elementary schoolers solve practice problems on the board and are shown how to line up the numbers for addition. They solve various addition problems in small groups. Everyone continues the same process for solving subtraction problems.
Curated OER
Let's Trade
Second graders engage in a instructional activity which focuses on adding two-digit numbers and the regrouping process. They identify when the regrouping process is necessary and make appropriate "trades" to complete an addition problem.
Curated OER
Matter
Students complete a unit of activities to learn about states of matter and how to measure matter. In this matter activity, students complete 8 lessons to learn about matter, its states, and how to measure matter.
Curated OER
Subtracting Whole Numbers
Second graders practice subtracting numbers by using a visual aide. In this number sense instructional activity, 2nd graders complete whole number subtraction problems by utilizing manipulative cubes to visualize the equation. Students...
Curated OER
A Frightening Mix of Math, A-Add or Subtract, But Look Out for the Monsters
In this math worksheet, students add and subtract. Fifteen problems are subtraction, students subtract two digit numbers from three digit numbers. Regrouping is required. Twenty-one problems are addition, students add two digit numbers...
Curated OER
Shopping for Toys
Young scholars pretend as if they have just won a $100 gift certificate to buy some toys and must try to spend as much of it as they can without going over.
Curated OER
Dinosaur Math
Second graders practice vocabulary related to measurement, mathematics, and dinosaurs. Using the engaging topic of dinosaurs, learners will calculate various information about dinosaurs and use measurement vocabulary. They will also...
Curated OER
Immigration Unit
Third graders develop an appreciate for the various cultures that are present in their local community. Through reading and research, they explain how various culture came to live in their area. At the conclusion of the unit, 3rd...
Curated OER
Unit 2 Sun & Stars
Young scholars describe stellar objects using terms such as stars, planets, satellites, orbits and light. In this sun and stars unit, students research stellar objects through seven individual lessons discovering star characteristics,...
Khan Academy
Khan Academy: Subtracting Two Digit Numbers (No Regrouping)
In this exercise, students practice subtracting two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to watch a tutorial video, get hints, and try questions repeatedly.
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.
CK-12 Foundation
Ck 12: Elem Math: Subtracting 2 Digit Numbers With Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a two-digit subtraction problem with regrouping. The video is followed by additional problems for students to practice the skills...
Cool Math
Coolmath: Coolmath4kids: Subtracting Numbers Within 100
Short tutorial showing how to subtract using two-digit numbers in tens and ones columns without regrouping.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video explains two subtraction problems one with regrouping and the other without regrouping.
Khan Academy
Khan Academy: Subtracting 1s or 10s (No Regrouping)
Practice solving problems like 67-5 and 67-50. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.
CK-12 Foundation
Ck 12: Elem Math: Overview of Subtraction Numbers to 100
[Free Registration/Login may be required to access all resource tools.] The video explains two, two-digit subtraction problems one with regrouping and the other without regrouping.
CK-12 Foundation
Ck 12: Elem Math: One Step Subtraction Numbers to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video is a subtraction word problem that describes how to subtract using regrouping. The video is followed by a series of practice questions to assess student...
CK-12 Foundation
Ck 12: Elem Math: Subtracting 2 Digit Numbers With Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to subtract two-digit numbers using regrouping. The video is followed by additional problems for students to practice the skills discussed in...
Khan Academy
Khan Academy: Subtracting 1s or 10s (No Regrouping)
Practice subtracting numbers less than 100.
Khan Academy
Khan Academy: Subtract 10s and 100s (No Regrouping)
Practice subtracting 1, 10, or 100 from a number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Adding Two Digit Numbers (No Regrouping)
In this exercise, students practice adding two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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.