MathGrid 100 vs かけ算ラボ

MathGrid 100 — Photo-graded math drills for daily mental math practice. Known in Japan as "Hyakumasu Keisan" (百マス計算 / 100-square calculation), this classic drill is a proven method for building mental math fluency, recommended by Japanese educators such as Hideo Kageyama. MathGrid 100 brings this method to your iPhone with AI-powered photo grading: just snap a picture of the completed worksheet and get an instant score. 【Features】 * Camera-based instant grading — no typing required * Supports addition and multiplication * 9×9 (multiplication) and 10×10 grids * Review and manually edit each cell if needed * Saves up to 20 sessions in history * Points, levels, and badges to keep kids motivated * Daily streak tracking * Up to 4 separate child profiles with individual progress 【Great for】 * Parents tired of manually grading drill sheets * Tracking your child's daily practice * Gamifying repetitive practice to keep kids engaged * Supplementing Kumon, abacus class, or other math curricula ※ Internet connection required (handwriting recognition runs in the cloud). ※ This app shows a persistent banner ad and an interstitial ad after every few gradings.

Multiply Mission — Master the Times Tables in a Space Lab! Multiply Mission is a playful learning app designed to help children in grades 1–3 truly understand multiplication — not just memorize it. Two complementary game modes work together so kids learn both what multiplication means and how to recall facts quickly. ■ Two Game Modes for Deep Learning ▷ Tile Puzzle Mode (Understanding the Concept) When your child enters the answer to 2 × 3, six tiles arrange themselves into 2 rows of 3. Children naturally discover that "multiplication is just adding equal groups." This visual foundation makes the times tables stick — instead of being a list of facts to memorize. ▷ Rocket Shoot Mode (Building Speed) Multiplication problems descend from space, and your child types the answer to shoot them down. Repeated, fun-driven practice transforms slow calculation into automatic recall — the same fluency that makes mental math feel effortless later in school. ■ Designed to Keep Kids Engaged - Choose any times table (1× through 9×) with stage-based progression - Delightful animations and sound effects reward every correct answer - Collectible badges for milestones like "First Correct," "10 in a Row," and "Stage Cleared" - A "My Progress" screen showing total play time, accuracy, and login streak - Charts visualize the past 7 days of practice and accuracy by times table ■ Built for Parental Peace of Mind - Works fully offline — no internet connection required - Zero advertisements - Zero in-app purchases - Zero data collection — all progress is stored on the device - Background music and sound effects toggle on/off with a single tap on the home screen ■ Perfect For - First graders curious about multiplication - Second graders learning their times tables for the first time - Third graders who want to answer faster and more accurately - Kids who can recite the times tables but don't quite understand what they mean - Children who learn better through play than through drills Welcome to the space lab, young scientist. The times tables await! Requires iPhone with iOS 18.0 or later.