Post a message or simply read what others have written and answered. Rachel, a RightStart™ Math user and one of our customer care people, will be monitoring this forum. She will respond to your questions as needed.
Have a great day and remember to play a math card game!
Hello Amy,
Negative Numbers can be done too. Someone was showing me how but I can't recall.
Just keep playing with it and writing down what you are balancing and see the cool equations you come up with.
Sometimes I would do something like 21 on the left side, (2x10)+1= and then tell him using three blue weights how would he solve it? then how do you solve it using 4 weights? 5 weights? I would do things like that and have him write down his answers. It has been a great tool.
Keep exploring I am sure you will do well. 
Please let me know if you have any more questions. You can email me directly at Carissa@alabacus.com .
Thank you for giving your child a RightStart in Math,
Carissa
RightStart™ Mathematics by Activities for Learning, Inc.
For program questions: 888.272.3291
To place an order: 888.RS.5.MATH (888.775.6284)
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Our Mission: To help children understand, apply, and enjoy mathematics
