prompt: Q: What is the result of 87 minus 49? A: 
random_counterfactual.prompt: Q: What is the result of 75 minus 68? A: 
ones_op1_counterfactual.prompt: Q: What is the result of 89 minus 49? A: 
ones_op2_counterfactual.prompt: Q: What is the result of 87 minus 46? A: 
tens_op1_counterfactual.prompt: Q: What is the result of 77 minus 49? A: 
tens_op2_counterfactual.prompt: Q: What is the result of 87 minus 29? A: 
ones_carry_counterfactual.prompt: Q: What is the result of 89 minus 41? A: 
tens_carry_counterfactual.prompt: Q: What is the result of 87 minus 49? A: 