Make a Ten Math vs 设备成本记录

Make a Ten Math is a number-bond practice game. Select two numbers so they add up to the target (default 10; customizable 5–20). Practice mode: shows composition and how many more you need. Challenge mode: 60-second timer to build speed. Boards run from 3×3 to 6×6. Later stages and custom targets unlock with an auto-renewable subscription. Subscription options (prices may vary by region; shown in your local App Store currency): • Weekly VIP — about US$0.99 / week • Monthly VIP — about US$2.99 / month • Quarterly VIP — about US$4.99 / quarter • Yearly VIP — about US$9.99 / year Payment is charged to your Apple ID at confirmation. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple Account → Subscriptions. Privacy Policy: https://kdocs.cn/l/chZyA8dJIfgA Terms of Use: https://kdocs.cn/l/caxO9qqVFsrk

一个记录设备价格、二手价格用于计算使用成本的小工具。