Bubble Times Math vs Sum + Sum

Merge, split, and make multiplication fun! Bubble Times Math is a playful math puzzle game where kids move colorful number bubbles to practice the 1–9 times tables. See 12? Try 3 × 4 or 2 × 6. Find two numbers that multiply to make the target, then move them into place to build the equation. Can't find the number you need? Merge bubbles or split them into two to create new numbers. Explore different combinations and practice at your own pace. ■ A hands-on number puzzle Drag one bubble onto another to merge them and add their values. Double-tap a bubble to split it into two. Making the numbers you need is part of the puzzle! ■ Two ways to play • 60 SECONDS Solve as many problems as you can in 60 seconds and aim for a new high score. Get answers right in a row to earn bonus points. • NO TIME LIMIT Take your time and think it through. Choose one or more times tables from 1 to 9 to practice something new or revisit a tricky table. Hints are available when you need a little help. ■ Support for multiplication beginners On an iPad or another device with a wide landscape layout, you can display an optional multiplication chart. Tap a result in the chart to highlight its row and column and see the matching multiplication fact. Hide the chart whenever you want. ■ Made for • Kids starting to learn multiplication • Learners who want to practice specific times tables • Anyone who enjoys number puzzles • Parents and kids who want to explore multiplication together Play a quick 60-second challenge or take your time discovering different combinations. Find your own way to enjoy multiplication with Bubble Times Math!

Sum Tass Sum（さんたさん）は、足し算の筆算をマス目で一歩ずつ練習できる学習アプリです。 入力するマスが自動で選ばれ、関係する数字がハイライトされるため、子どもが「次にどこを考えればよいか」を見失いにくい設計です。繰り上がりがある問題も、補助マスを使って順番に確認しながら進められます。 練習できる内容: ・1桁＋1桁 ・2桁＋1桁 ・2桁＋2桁 ・3桁＋3桁 ・3つの数の足し算 特徴: ・筆算をマス目で表示 ・入力対象マスを自動ガイド ・関連する数字をハイライト ・繰り上がりもステップごとに練習 ・ヒントとヘルプ機能 ・間違えた問題の復習 ・学習履歴を端末内に保存 ・iPhone / iPad対応 Sum Tass Sumは、家庭での算数学習や、足し算の筆算をはじめて練習する子ども向けに作られています。 問題を解くだけでなく、筆算の手順そのものを自然に身につけられることを目指しています。