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.
Khan Academy
Khan Academy: Add 2 Digit Numbers by Making Tens 2
Practice adding two-digit numbers by making tens on Khan Academy. If you are stuck, watch a refresher video or choose to get a hint. Test yourself to see how many you can get correct!
Khan Academy
Khan Academy: Add 2 Digit Numbers by Making Tens 2
Practice adding two-digit numbers by making groups of ten.
Khan Academy
Khan Academy: Add 2 Digit Numbers by Making Tens
Students will be challenged in their skills to add 2-digit numbers by making tens
CK-12 Foundation
Ck 12: Elem Math: Adding Two Digit Numbers With Regrouping
[Free Registration/Login may be required to access all resource tools.] The video models how to add two-digit numbers using regrouping. The video is followed by practice problems.
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.
AAA Math
Aaa Math: Adding Two Digit Numbers
This lesson has an explanation for adding two-digit numbers using paper and pencil. There is also a game to practice your skills. The game gives you a percent score of your correct answers, as well as running totals of your correct and...
AAA Math
Aaa Math: Adding Two Digit Numbers Mentally
Read these two strategies for adding two-digit numbers in your head. Then try out the one you like better by playing the game. Running totals of your correct and incorrect answers as well as a percent score of your correct answers will...
Other
Internet4 Classrooms: Add Four Two Digit Numbers
Take this practice quiz to see how well you can add four two-digit numbers.
CK-12 Foundation
Ck 12: Elem Math: Adding Three 2 Digit Numbers
[Free Registration/Login may be required to access all resource tools.] The video shows how to add three, two-digit numbers. The video is followed by practice problems covering the topics in the video.
Other
Nearpod: Adding Within 100
In this lesson on addition within 100, students will learn how to compose numbers and will explore strategies to add double-digit numbers such as vertical addition, regrouping, using multiples of 10, and labeling an open number line.
Khan Academy
Khan Academy: Add 2 Digit Numbers by Making Tens
Practice adding 2-digit numbers like 43+27 that have sums that are multiples of 10.
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.
ClassFlow
Class Flow: Making a Ten Adding Two Digit Numbers
[Free Registration/Login Required] This flipchart introduces the concept of addition of sums of 10 or more than 10. The flipchart has examples with visuals to help students understand tens and ones. It would be useful when beginning a...
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.
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.
Texas Instruments
Texas Instruments: Crunching Numbers
In this activity, students learn to build and add two digit numbers. They connect number words and numerals.
AAA Math
Aaa Math: Mentally Adding Two Digit Numbers
This site explains how to mentally add two-digit numbers. Gives exercises and games to practice this skill.
CK-12 Foundation
Ck 12: Elem Math: Adding Three 2 Digit Numbers
[Free Registration/Login may be required to access all resource tools.] The video shows how to add 3, two-digit numbers followed by additional practice problems.
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...
Cool Math
Coolmath: Coolmath4kids: Adding Numbers Within 100 With Regrouping
Demonstrates how to regroup when adding 2-digit numbers.
National Council of Teachers of Mathematics
The Math Forum: Beat the Calculator: Adding Even Numbers
Can you beat the calculator? Your task is to find the sum of all even numbers between two and any selected two-digit even number. If you can find the number pattern, you are sure to beat the calculator every time. Links to other "Beat...
AAA Math
Aaa Math: Adding Two Digit Numbers
Explains how to add two-digit numbers. Gives practice and games to practice this skill.
E-learning for Kids
E Learning for Kids: Math: Hamburger Restaurant: Addition
On this interactive website students practice various math skills using a real life scenario at a hamburger restaurant. Those skills include adding two-digit numbers and three-digit numbers.