Best prices on Hp 35s in Calculators. Check out BizRate for great deals on Calculators from HP. Use BizRate's latest online shopping features to compare prices for Hp 35s. Read product specifications, calculate tax and shipping charges, sort your results, and buy Office Supplies with confidence. Easily narrow your search and find the product that's perfect for you: HP 35S Scientific Calculator - Hp 35s Calculator User's Guide Manual Hp.