HP is smarting up the cookie to do some fiery math calculations with a lineup that includes HP SmartCalc 300s scientific calculator, HP EasyCalc 100 and HP OfficeCalc 300. These new calculators boast a convenient and intuitive user experience. The HP SmartCalc 300s scientific calculator helps math and science students solve basic and advanced math problems. It hosts a large multi-pixel Textbook Format Display (TFD) that allows students to see math expressions, as they would appear on paper. Spec include 249 built-in functions and integrated energy-wise solar power. Next up is the HP EasyCalc 100, a device for basic math functions. Colorful, compact and a cinch to carry, this calculator features solar power with battery backup, auto power off and a compact form.

Rounding the bend is the HP OfficeCalc 300, a stylish device to prep your office desk. This calculator lets you edit any one of your last 105 inputs without having to re-key the entire expression. Features include built-in functions for common calculations such as tax and percentages. Its energy efficient with solar power with battery back-up.

· HP SmartCalc 300 is for $14.99

· HP Easy Calc 100 is for $7.99

· HP OfficeCalc 300 is for $29.99