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Student Instructions
Today you will practice using mental math to add
1, 10 or 100 to a 3 digit number.
To get started, click the 
button.
1. Read the directions.
2. Use the 
tool to click on the blue dice to generate a 3-digit number.
3. Read your generated number out loud.
4. Use the 
to write the number in the middle space.
5. Read the label in the circles / squares
6. Use the to add or subtract 1, 10 or 100 to your number.
7. After you complete all 4 pages, click the green 
to turn in your work.
Teacher Notes (not visible to students)
Teachers, this activity is a fun way to practice adding or subtracting 1, 10, or 100 to a 3 digit number.
>>> add your own voice directions as needed for your particular class.
* If this is the first time your students are using a number generator, you will want to model how to start and stop it.
* If your students have a hard time holding a 3-digit number in their memory before writing it, you will want to model how to write the generated number on a dry erase board or scrap paper before touching the tool to write it on chart. *Once they touch the pen, their generated number will disappear.
* This activity can be used multiple times since the numbers are randomly generated. You can model it with the students in a whole group lesson before having them do it on their own.
*This activity can be used as a "center" activity during guided math time.
** I created the number generator on Google Slides using Kris Szajner's tutorial :)
