Math4Sale, Inc.
Over 20 years. 1,077+ schools. 1,128,358+ calculators sold. We don't sell furniture. We don't sell software. We sell calculators — and we're the best at it.
We Love Serving Schools
Math4Sale was born from a simple frustration: schools were overpaying for calculators. Administrators navigated confusing procurement processes. Students went without tools they needed.
We built Math4Sale to fix that. Since 2005, we've been the dedicated calculator partner for K-12 schools, universities, charter networks, and government agencies across all 50 states.
We don't sell anything except calculators. This singular focus means we know the market, we know every product, and we get you the best deal — every single time. Calculators. 365/24/7.
Since 2005, the trusted name in school calculators across all 50 states.
From district-wide orders to individual classrooms — every size, every level.
Every unit inspected. Every order backed by our no-hassle warranty.
Because we answer the phone and we get it right, every time.
Built for Schools. Designed for Procurement.
From the Department of Defense to charter networks to rural K-12 districts — here's why institutions keep coming back, year after year.
“We supply calculators to DoDEA schools worldwide. Math4Sale handled our 500-unit order seamlessly — on time, under budget, zero defects.”
“Math4Sale helped us equip 1,200 AP students with graphing calculators in under two weeks. Their team understands the urgency educators face.”
“We switched vendors after one order with Math4Sale. The per-unit savings on TI-84 Plus CEs funded an entire semester of STEM supplies.”
“We needed 800 graphing calculators across multiple campuses in three states. Math4Sale delivered every unit on schedule and under our budget — no hassle, no surprises.”
Frequently Asked Questions
New Retail is factory-sealed from TI with the original retail packaging and a 1-year TI manufacturer warranty. Institutional is the same new calculator — returned-new or institution surplus units, inspected and repackaged by our team — with a 1-year Math4Sale No-Hassle Replacement Warranty. Factory Renewed is refurbished to like-new condition through our Amazon Renewed Certified partnership, also backed by our 1-year No-Hassle Replacement Warranty. Every quote includes pricing for all three so you can choose what fits your budget.
Yes. We accept POs from all schools, districts, and government agencies. Email your PO to Sales@Math4Sale.com. Most POs are processed and shipped within 24–48 hours.
If any calculator stops working within one year of purchase, we replace it — no repairs, no waiting, no hassle. Just contact us and we'll ship a replacement. No restocking fees, no return shipping costs. It covers all Institutional and Factory Renewed units. New Retail units are covered by TI's standard manufacturer warranty.
No minimum. We sell individual units all the way up to thousand-unit district orders. Pricing improves with volume — your quote includes quantity tiers automatically.
Yes. All TI-83 Plus, TI-84 Plus, and TI-84 Plus CE models are approved for SAT, ACT, AP, IB, and most state standardized tests. If you're unsure about a specific model, contact us and we'll confirm exam eligibility before your order.
Math4Sale has been supplying calculators to schools since 2005 — over 20 years. We've served 1,077+ institutions ranging from individual K-12 classrooms to the Department of Defense's DoDEA schools worldwide.
Ready to Save on Your Classroom Calculators?
Get your cost saving quote in under 30 seconds. POs accepted, tax-exempt purchases handled, and every order ships within 48 hours.