Mental Math vs 九九できた

Calmenta is a playful mental math app to learn and practice addition, subtraction, multiplication and division. Work on times tables up to 12, take on timed challenges and write your answers straight on the screen with your finger. Made for children who want to get better at math at their own pace, Calmenta offers mental math exercises from beginner to extreme, with or without a timer. LEARN AND PRACTICE MENTAL MATH • Addition, subtraction, multiplication, division, comparisons and powers. • Times tables up to 12, one table at a time or all together. • 4 difficulty levels to progress at your own pace. • An “All” mode to mix different types of calculation. • Build your own sets by choosing the operations, the level and the number of calculations. WRITE YOUR ANSWER WITH YOUR FINGER No keyboard needed: just write your answer anywhere on the screen. Calmenta recognizes the digits directly on the device, bringing back a natural way of doing math, close to pencil and paper. 20 CALCULATIONS AGAINST THE CLOCK Take on the challenge with sets of 20 mental math exercises and try to beat your best time. Would you rather practice quietly? Turn on Training mode to play without a timer and without time pressure. PROGRESS EVERY DAY • Beat your records and earn stars. • Collect badges as you progress. • Grow your streak of days played. • Track the operations and levels you have mastered. • Keep improving, one calculation at a time. FOR PARENTS • No ads. • No account required. • Progress data stays on the device. • A parents’ area lets you follow each child’s progress. • See results by operation, mastered levels and records. • Create several child profiles for the whole family. FREE AND PREMIUM Calmenta is free to use with 3 games a day and the first 2 levels. Calmenta Premium unlocks: • Unlimited games. • All 4 difficulty levels. • Several child profiles. • Detailed parental tracking. Mental math, times tables, challenges and progress: practice every day with Calmenta. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

「九九できた」はこどもが一人でも使える九九練習アプリです。 画面の問題を見たら、答えを声に出して言います。「こたえを みる」を押して正解を確認し、自分で「○ できた！」か「× もういちど」を選びます。 選択肢がないため、答えを見て当てるのではなく、本当に九九を覚えているか確認できます。難しい操作や時間制限はありません。自分のペースで繰り返し練習できます。 主な特徴 ・2〜9のだんから、練習したいだんを選べます ・1つのだんは、×1〜×9の9問です ・「ぜんぶのだん」は、ランダムに20問出題します ・答えはボタンを押すまで表示しません ・自分で○×をつけて学習できます ・間違えた問題は、同じ問題にもう一度挑戦できます ・最後に、できた問題数と間違えた問題を確認できます ・ピンク、みずいろ、きいろ、みどりから背景色を選べます ・ログインや個人情報の入力は不要です 九九を習い始めたときの練習や、苦手なだんの復習、学校や家庭での暗唱確認にお使いいただけます。