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.
Texas Instruments
Texas Instruments: A Maze Ing Secret Paths
Learners learn to add and subtract numbers Using the calculator. They investigate patterns in place value and explore relationships between numbers on the hundred chart.
Better Lesson
Better Lesson: Smiley Faces and Up
Automaticity with patterns that allow students to easily manipulate larger numbers is the aim of this activity.
Khan Academy
Khan Academy: Solve Problems With Picture Graphs 1
Read and interpret picture graphs. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.
Better Lesson
Better Lesson: Magic of Adding Tens
Can your students make bundles of tens? This lesson allows students to visualize adding tens to make one hundred.
ClassFlow
Class Flow: Addition Subtraction
[Free Registration/Login Required] The pages of this flipchart demonstrate methods for adding and subtracting near multiples of ten and give the children opportunities to practice these methods. You may consider using a 100 square for...
ClassFlow
Class Flow: Mental Addition and Subtraction
[Free Registration/Login Required] The pages of this flipchart demonstrate methods for adding and subtracting near multiples of ten, and give the children opportunities to practice these methods. You may consider using a 100 square for...
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Word Problems #3 [Pdf]
An activity for students to solve simple word problems using addition and subtraction.
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.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Take From: Change Unknown Problems [Pdf]
An activity for the students to solve simple word problems.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Take From: Start Unknown Problems [Pdf]
An activity for the students to solve simple word problems.
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.
Math Slice
Math Slice: Number Sense Math Drills
A group of topics that include counting with pictures to 20, sums to 100, finding the missing number in a sequence, multiplication, expanded and standard form, and basic computation practice with addition, subtraction, multiplication, or...
Quia
Quia: Math Journey
In this online game London is your starting place! This game lets you practice addition, subtraction, multiplication, division and rounding as you "Travel," around the world. You can also choose the level of difficulty
ClassFlow
Class Flow: Daily Calendar
[Free Registration/Login Required] Daily calendar activities are used to incorporate 100 chart, daily addition, subtraction, expanded notation, money, and weather into our daily day.
Teaching Treasures Publications
Teaching Treasures: Year Four Math (Page 1)
This interactive worksheet combines all four operations. The focus is on addition and subtraction fact through one hundred and basic multiplication and division facts. This easy to navigate activity offers learners immediate feedback and...
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: 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.
National High Magnetic Field Laboratory
Magnet Academy: Nikola Tesla
Awarded more than 100 patents over the course of his lifetime, Nikola Tesla was a man of considerable genius and vision. He was reportedly born at exactly midnight during an electrical storm, an intriguing beginning for a man who would...
Khan Academy
Khan Academy: Add 1 or 10
Practice solving problems like 34+1 and 34+10. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Other
Today in Literature: Today's Story
Each day, this site provides a different biography or interesting story about a great book or day in literary history. Many of the archived articles are available in full; others are available only in summary for free access. Authors run...
Khan Academy
Khan Academy: Adding 1s or 10s (No Regrouping)
In this exercise, students practice adding 1s or 10s (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
State Library of North Carolina
N Cpedia: Fur and Skin Trade
The fur and skin trade was a significant industry from the earliest permanent settlement of the region that became North Carolina. Pelts shipped to Europe included beaver, bear, deer, raccoon, mink, muskrat, opossum, wolf, and fox. Many...