Curated OER
Two Digit Addition (with regrouping)
An outstanding PowerPoint presentation on two-digit addition with regrouping awaits your class. The slides present the steps necessary in extremely clear fashion. There are two "internet games" embedded in the final slide that lead to...
Curated OER
Three-Digit Plus Two-Digit Addition (A)
Young mathematicians solve 100 problems that require adding three-digit and two-digit numbers. Regrouping is required. The answer key is provided.
Curated OER
Two-Digit Addition: No Regrouping (A)
This worksheet provides 100 two-digit addition problems to solve. None require regrouping. The answer key is provided.
Curated OER
Thanksgiving Addition
If you are teaching two-digit addition, this would be a good worksheet for you to consider using. Pupils add 19 problems. Each problem has three addends of two-digits each. An answer key appears on the second page of the packet.
Curated OER
Add Up to Four Two-Digit Numbers
The class practices adding two, three, and four two-digit numbers. They add the number sentences on the left, then draw a line to the correct answer on the right.
Curated OER
Two-Digit Addition
In need of a few good problems for the class to solve every morning? Each of the eight slides contain six double-digit addition problems which would be perfect as a morning math warm-up, skills and drills practice, or to be completed as...
Curated OER
Mentally Add Two 2-Digit Numbers pg. 1
Mental math addition is the focus of this worksheet. Students apply a strategy outlined in the worksheet to find the sums. In this worksheet, students find the answers for twenty problems. Answers appear at the end.
Curated OER
Two-digit Addition
In this math worksheet, students solve 17 two-digit addition problems. Students may also color in the border, which includes illustrations of sea horses.
Curated OER
The Part-Adder 2
Third graders use mental-math strategies to solve two-digit plus two-digit addition problems. They observe and discuss online demonstrations, solve word problems as a class, and independently solve problems and describe their solutions...
Curated OER
Magic Sum
Students calculate two-digit addition problems. They observe a teacher-led demonstration, and solve various problems independently.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: 2 Digit Addition Trains [Pdf]
An activity to practice addition. Materials needed include cuisenaire rods (or Base 10 blocks) and numeral cards (0-9).
E-learning for Kids
E Learning for Kids: Math: Bbq Party: Addition
Louis is having a barbecue at his school. There are also a lot of fun games to play! Make sure that everything is added up, so that everyone has a great time.
NumberNut
Number Nut: Addition: Adding Two Digit Numbers
Explains how to add two-digit numbers by focusing on each column of digits as you add, rather than the entire numbers.
NumberNut
Number Nut: More Than Two Addends
Develop strategies for adding more than two addends with this quick addition lesson. Examine how grouping numbers can help make adding multiple numbers easier. Then, practice your new skills using the related interactive games that are...
Mr. Martini's Classroom
Mr. Martini's Classroom: Adding 2 Digit Numbers Showing the 1 Carry
Students add two-digit numbers with these interactive flashcards. The resource demonstrates how to carry a "1" in the tens or hundreds column.
Varsity Tutors
Varsity Tutors: Aplus Math: Non Java Flashcards (Mixed Topics)
Find a great selection of non-Java math flashcard activities. Choose from an index of flashcard topics of a variety of difficulty levels. Topics include: basic and advanced addition, subtraction, multiplication, and division, algebra,...
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.
Mr. Martini's Classroom
Mr. Martini's Classroom: Big Number Flashcards: Addition Through 99
These interactive flashcards help students add two-digit numbers through 99. The problem changes color with the correct answer.