Crickweb
Crickweb: Numeracy: Two Digit Number Labeling
Students explore two digit numbers in this learning activity. Learners drag and drop the names of the two digit numbers on to the picture.
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...
Study Pad
Splash Learn: Decompose Numbers (11 to 19) Into a Ten and a Few Ones
[Free Registration/Login Required] Using ten frames and number sentences, students will practice decomposing numbers into tens and ones.
Better Lesson
Better Lesson: Adding and Subtracting Multiples of Ten
Students will apply the idea of adding or subtracting ten to a number by adding or subtracting multiple groups of ten from a number. Included is a detailed lesson plan, videos of the activity in action, materials and worksheets, and...
Arcademics
Arcademics: Alien Addition
Students review addition while playing this learning game. Students shoot the spaceship that has the addition problem that matches the given solution.
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.
Texas Instruments
Texas Instruments: Putting Things in Place
In this activity, students investigate the value of the digits in $8,205.50 and determine the number of thousands, hundreds, tens, ones and even the number of dimes and pennies. The concept is then extended to additional situations. They...
Texas Instruments
Texas Instruments: Crunching Numbers
In this activity, students learn to build and add two digit numbers. They connect number words and numerals.
Mr. Martini's Classroom
Mr. Martini's Classroom: Math Addition With Carrying 2, 3, and 4 Digits
Students solve two, three, and four-digit addition problems with carrying. The sum turns blue if correct.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Adding Tens to a 2 Digit Number [Pdf]
Students will flip two cards over and determine the sum. Base ten blocks could be used for additional help.
Mangahigh
Mangahigh: Number: Number Pairs Up to 100
Students explore the concept of number pairs by working through an online tutorial and then attempting a ten question quiz that increases in difficulty as questions are answered correctly.
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.
Illustrative Mathematics
Illustrative Mathematics: Peyton and Presley Discuss Addition
The purpose of this task is to support students in developing an understanding of a place value strategy for adding numbers. By using a representation to visualize the abstract notation, students will make sense of the strategy, adding...
Khan Academy
Khan Academy: Two Digit Place Value Challenge
In this exercise, students demonstrate their understanding of two-digit place values. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Adding 1 or 10
In this exercise, students practice adding 1 or 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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: 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.
Khan Academy
Khan Academy: Regrouping When Adding One Digit Numbers
In this exercise, students practice regrouping when adding one-digit numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Cool Math
Coolmath: Coolmath4kids: Addition
A set of seven short tutorials on addition. Begins with a basic introduction to how addition works, and covers topics such as using a number line, place value, and regrouping.
Khan Academy
Khan Academy: Hundreds, Tens, and Ones
Practice thinking about place value of 3-digit numbers as hundreds, tens, and ones. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.
Khan Academy
Khan Academy: Adding Two Digit Numbers by Making Tens
In this exercise, students practice adding two-digit numbers by making tens. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Adding Two Digit Numbers by Making Tens 2
In this exercise, students practice adding two-digit numbers by making tens. Students receive immediate feedback and have the opportunity to watch tutorial videos, get hints, and try questions repeatedly.
Khan Academy
Khan Academy: Regrouping: Two Digit Number Minus One Digit Number
In this exercise, students practice regrouping with two-digit number minus one-digit number. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
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.