Charles is using her calculator to find the product of two large numbers. Her calculator shows 1.78E12 on the display. Interpret what this means
1.78E12 is also known as scientific notation, where E represents "times 10 raised to the power of". In this case, 1.78E12 means 1.78 multiplied by 10 raised to the power of 12.
In other words, the number displayed on Charles' calculator is 1.78 followed by 12 zeros, resulting in an extremely large number.