Adding and subtracting using round and adjust
In this lesson, we we will add and subtract 2 digit numbers by using the round and adjust strategy whereby numbers are rounded to the nearest five or ten, then adjusted again at the end of the calculation.
Video
Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:
- Click "Close Video"
- Click "Next" to view the activity
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Worksheet
These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.
Lesson summary: Adding and subtracting using round and adjust
Time to move!
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