SeedCalc - A Wonder Calculator

Have fun by inputting numbers or doing the arithmetic! Help kids explore how tall dinosaurs are, how small DNA is, and how big the sun is!

Help kids understand numbers, orders of magnitude, and the four operations with fun things at different scales. Key features:

• Dozens of fun things and animations to show different scales of the universe.
• Demonstrate the precedence of the four operations.
• A full-featured calculator, supporting parentheses, and the four arithmetic operations.