prompt: Q: What is the result of 21 minus 20? A: 
random_counterfactual.prompt: Q: What is the result of 83 minus 31? A: 
ones_op1_counterfactual.prompt: Q: What is the result of 28 minus 20? A: 
ones_op2_counterfactual.prompt: Q: What is the result of 21 minus 20? A: 
tens_op1_counterfactual.prompt: Q: What is the result of 31 minus 20? A: 
tens_op2_counterfactual.prompt: Q: What is the result of 21 minus 10? A: 
ones_carry_counterfactual.prompt: Q: What is the result of 30 minus 29? A: 
tens_carry_counterfactual.prompt: Q: What is the result of 21 minus 20? A: 