Question 1: What is 3 − 10? Question 2: What is 9 − 1? Question 3: What is 8 − 7? Question 4: What is 5 − 7? Question 5: What is 4 − 10? Question 6: What is 1 − 2? Question 7: What is 5 − 3? Question 8: What is 7 − 7? Question 9: What is 4 − 2? Question 10: What is 9 − 6? Question 11: What is 6 − 4? Question 12: What is 10 − 6? Question 13: What is 3 − 6? Question 14: What is 4 − 3? Question 15: What is 1 − 6? Question 16: What is 5 − 2? Question 17: What is 10 − 9? Question 18: What is 6 − 9? Question 19: What is 6 − 1? Question 20: What is 3 − 1? Next