数学口算HD vs Numi123

小学数学模拟纸张试题口算防真练习，自动检查正确性，错题改正及记录，试题导出打印，小学1~6年级数学口算轻松练； 功能描述： 【真实纸张模拟体验】 * 试卷自由生成：自定义题目数量、题型（加减乘除/小数/分数），一键生成试卷； * 无限草稿纸：手写验算随写随擦，还原纸质练习习惯； * 题卡批量打印：一键导出PDF，自由打印，生成周练习计划； 【智能批改·错题闭环】 * 1秒自动检查：答题后可一键批改，即时改错； * 自动归类：按知识点（如“进退位减法”“分数运算”）生成强化练习卷； * 学习记录追踪：随时查看历史练习数据，薄弱点一目了然； 【海量题库·精准匹配教材】 * 年级分级题库：覆盖小学1~6年级数学，按学习进度由易到难； * 10万+题目库：每日练习不重样，覆盖整数、小数、分数四则运算； * 错题再练功能：错题自动加入随机生成的新试卷，针对性巩固；

Numi is math practice for children, set up by a parent and worked through on the iPad or iPhone — with a real scratch pad, not just a box to type an answer into. HOW IT WORKS 1. A parent creates an account and adds a profile for each child, with their grade level (1 to 8). 2. Tap Start practice. Numi generates a fresh set of problems at that grade — never the same worksheet twice. 3. The child works each problem out on the scratch pad with an Apple Pencil or a finger, then types or taps the answer. 4. Numi grades the set, gives feedback on every problem, and explains anything that was missed, step by step. 5. The parent sees the score, the time taken, the child's own written work, and a summary of what needs work. A REAL SCRATCH PAD Carrying, borrowing, long division, common denominators — the part that actually teaches is the working out. Numi gives every problem a full-width pad with pen sizes, colors and an eraser, and saves what the child wrote. When you look back at a problem later, you see their handwriting, not just the answer they landed on. Apple Pencil is supported, and so is a finger. A single switch above the pad decides whether a finger writes or scrolls, so a resting palm never draws by accident. EXPLANATIONS, NOT JUST MARKS A wrong answer is only useful if the child finds out why. Every problem can be opened to a worked solution written for that grade level — the steps, in order, ending at the answer, next to what the child actually wrote. Step-by-step review can be left open, or locked behind the parent password so it stays a teaching tool rather than an answer key. BUILT AROUND EACH CHILD • One parent account, a separate profile for each child • Grade levels 1 to 8, changeable per session • 5, 10, 15, 20 or a custom number of problems • Type the answer, or multiple choice • Focus areas — prioritize multiplication, fractions, area and perimeter, ratios, and more • Automatic focus — Numi reads the recent results and targets the weakest areas without being told • History with every past session: score, time, feedback and saved scratch work • A plain-English "needs work" summary of where the child is actually struggling FOR PARENTS Sign in with an email address, Google, or Apple. Child profiles live under your account — children never need one of their own. Nothing a child does in Numi is public or shared with anyone else, and there are no ads and no chat. You can delete your account, and everything in it, from inside the app at any time. FREE AND PAID Every new account gets 7 days of full access. After that, the free plan keeps working: one practice session a day, up to 5 problems each. A one-time purchase unlocks unlimited sessions, up to 50 problems per session, focus areas, automatic focus, and the progress and accuracy report in history — the charts and the "needs work" summary. It is a one-time purchase, not a subscription. PRIVACY Practice problems are generated by an AI provider, and the answers a child submits are sent there to be graded. We do not sell data and we do not show ads. Full details: https://app.numi123.com/privacy Questions or trouble? hello@nexusaistudio.studio