Calculating with the XO

Use the Calculator Activity for simple math functions such as add, subtract, divide and multiply, as well as scientific functions such as cos, sin, exp, and so on.

You can also share your calculations with others using their XO. Click the history tab to see equations entered by your friends in their own color.

What am I learning?

You are learning how to represent values of measurements and do calculations on the measurements or numbers.

Why is this important?

Data is often represented with numeric values, and with a calculator you can solve a variety of problems.