This problem simply asks students to add the tenths and hundredths together.
This short video and interactive assessment activity is designed to teach fourth graders about adding unit lengths in one step (english units).
This lesson demonstrates how to add vectors using the parallelogram rule. It is 2 of 2 in the series titled "Adding Vectors Using the Parallelogram Rule." [9:01]
Learn how to add vectors using the tail-to-tip method. [6:00]
This lesson demonstrates how to add vectors using the tail-to-tip method. It is 2 of 2 in the series titled "Adding Vectors Using the Tail-to-Tip Method." [6:52]
Students use estimates and work on strategies for adding and subtracting decimals.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting money with pictures in columns.
This is an interactive assessment and video designed to teach Adding and Subtracting (Numbers up to 20) - Word Problems to first graders.
This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting terms (numbers to 100).
Demonstrates how to use a number line to visualize and solve addition and subtraction word problems. [4:27]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Demonstrates how to add 35 to 27 using drawings of base ten cubes to represent 1s and 10s. [4:36]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This short video and interactive assessment activity is designed to teach fourth graders about addition: completing the addition sentence.
The purpose of this task is to study some patterns in a small addition table. Each pattern identified persists for a larger table and if more time is available for this activity students should be encouraged to explore these patterns in larger tables.
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.
Video tutorial demonstrates how to solve an addition word problem with numbers less than 100. [3:30]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Download these worksheets to sharpen your addition skills. Sheets focus on single and multi-digit addition, addition table, column addition, and adding doubles of numbers.
Learn the basics of addition and subtraction, then practice what you've learned using our interactives.
Lessons include: (1) Introduction to Addition. Learn the basics of addition, then use our interactives to practice what you've learned. (2) Adding Two- and Three- Digit Numbers. Learn how to add two- and three-digit numbers, then use our interactives to practice what you've learned. (3) Video: Addition. In this video, you'll get the basics down of adding numbers.
Learn how to solve addition and subtraction word problems using gorillas and cookies as examples. [5:31]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Students extend their computational work to include fractions and decimals, adding and subtracting numbers in those forms in this unit before moving to multiplication and division in subsequent units.
This short video and interactive assessment activity is designed to teach third graders about one step addition and subtraction - word problems.