數學練習 · 全新體驗
Expressions
把Expressions變成一場你真心想贏的對決。每一道題都是一次攻擊——比對手更快解出，就能命中對方。
4–99+ 歲皆宜 · 免下載 · 直接在瀏覽器中遊玩 · 23 種語言
玩法說明
Expressions
選一名鬥士，挑選Expressions，相信你的算術。解得越快、越準，出拳就越重——從輕鬆的低年級題目，一路挑戰到奧林匹亞等級。
Algebra starts to feel manageable the moment you realise that x is just a thing you are counting.
Five x plus three x is eight x, for exactly the reason five apples plus three apples is eight apples. The letter names WHAT you have; the number in front — the coefficient — says how many. Adding them changes the count and leaves the thing alone.
Terms that share the same letter are called LIKE terms, and only like terms can be combined. 5x + 3y stays as it is, because apples and pears do not add into a single pile.
So the whole skill here is: find the coefficients, add them, and keep the x. The answer is a number of x's, and it is that number you type.
— 快問快答 —
Expressions：精簡 FAQ
- Expressions可以免費玩嗎？
- 可以。Expressions在瀏覽器裡就能免費暢玩——課程全部開放，免下載、免註冊。付費方案之後才解鎖完整鬥士陣容、全部舞台與進度保存。
- Expressions適合誰玩？
- 4 到 99+ 歲的任何人。低年級對新手依然平緩，更高的難度則連有自信的玩家也得冒汗。
- 玩Expressions需要下載什麼嗎？
- 不需要。Expressions在任何瀏覽器裡都能跑，筆電、平板或手機都行。
- Expressions能在課堂上用嗎？
- 當然可以。老師帶一整班玩Expressions，還能追蹤誰在進步——按學生人數計價與教師儀表板，詳見學校方案。