Adding & Subtracting
Integers Challenge
Test your skills on 25 random problems using integers from -10 to 10
How It Works
- 25 addition and subtraction problems chosen at random, with numbers from -10 to 10
- Use the ± button (or the minus key) to enter a negative answer, then press Enter
- Correct answers advance immediately
- Wrong answers are shown briefly, then added to the end — you must get every problem right to finish
- Your total time is recorded when all problems are complete