Khan Academy: Adding 8 + 7

Demonstrates how to count pieces of fruit and make a group of ten to find the sum of 8 + 7. [3:18]

Demonstrates how to count pieces of fruit and use a number line to add 6 + 7. [3:53]

Sal demonstrates adding 7 + 6 using a number line. Includes a video, transcript, and question and answer section. [3:53]

Sal adds 3-digit numbers by adding ones, tens, and hundreds. Includes a video, transcript, and question and answer section. [3:36]

Sal talks about the difference between adding 1 and adding 10 in this Khan Academy video. [2:16]

Watch as Sal adds 5 + 3 + 6 in two different ways. Includes a video, transcript, and question and answer section. [2:37]

Sal adds 1, 10, or 100 to 235. Includes a video, transcript, and question and answer section. [3:58]

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!

Sal adds and subtracts three-digit numbers less than 1000 using a number line. Includes a video, transcript, and question and answer section. [2:24]

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.