prompt: Q: What is the result of 40 minus 39? A: 
random_counterfactual.prompt: Q: What is the result of 64 minus 48? A: 
ones_op1_counterfactual.prompt: Q: What is the result of 49 minus 39? A: 
ones_op2_counterfactual.prompt: Q: What is the result of 40 minus 30? A: 
tens_op1_counterfactual.prompt: Q: What is the result of 40 minus 39? A: 
tens_op2_counterfactual.prompt: Q: What is the result of 40 minus 39? A: 
ones_carry_counterfactual.prompt: Q: What is the result of 45 minus 34? A: 
tens_carry_counterfactual.prompt: Q: What is the result of 40 minus 39? A: 