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Student:
Guest
➕ Add & Subtract ➖
Practice long addition & subtraction — with or without regrouping!
1 · Choose your number size
2
2-digit
10 – 99
3
3-digit
100 – 999
4
4-digit
1,000 – 9,999
2 · Carrying & borrowing
🚫
No carry
no borrowing
🔄
Regroup
carry & borrow
🎲
Mixed
both kinds
3 · Choose a game
➕
Addition
Add them up
➖
Subtraction
Take them away
←
⭐
0
🔊
347 + 268 = ?
🔊
🏆
Great job!
8
/ 10 correct
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