Walmart offers the Texas Instruments TI-30X IIS 2-Line Scientific Calculator in several colors (Blue pictured) for $8.97. Opt for in-store pickup to avoid the $5.99 shipping fee. That's tied with our mention from last week and the lowest price we could find today by $2, although most charge $12.99 or more. Buy Now Tips Amazon charges the same price for another color, with free shipping for Prime members. Search "Texas Instruments TI-30X IIS" for additional colors. Features 2-line display shows entry and calculated result solar and battery powered Model: TI-30X IIS