TEXAS INSTRUMENTS TI 99/4A "Laws of Arithmetic" cartridge (TI and Milliken, 1982)
Condition: used, tested and working. Clean cartridge and label.
Cat. No.: no number listed
Includes: cartridge only, no box or manual.
Shipping weight: 5 oz.
Label variation: blue label, black cartridge
Skill drills to reinforce the laws of arithmetic for students learning the fundamentals that lead to higher math.