4-digit Addition & Subtraction
Free GameAbout 4-digit Addition & Subtraction
4-digit and 3-digit addition Drill
4-digit minus 3-digit Drill
4-digit Addition Drill
4-digit minus 4-digit Drill
Three 3-digit Addition Drill
Subtracting from 4-digit numbers Drill
4-digit minus 3-digit Drill
4-digit Addition Drill
4-digit minus 4-digit Drill
Three 3-digit Addition Drill
Subtracting from 4-digit numbers Drill
All Application Badges
Free
downl.
downl.
Android
4.0+
4.0+
Android game
Game History & Updates
What's Changed
增加：1. "先看數字輸入技巧" 更詳細解說輸入技巧，以增加數字輸入的正確性。
2. 測驗成績的寄送，寄件者改由系統發送信件。
增加：1. "先看數字輸入技巧" 更詳細解說輸入技巧，以增加數字輸入的正確性。
2. 測驗成績的寄送，寄件者改由系統發送信件。
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