prompt: The difference between 81 and 66 is: 
random_counterfactual.prompt: The difference between 92 and 25 is: 
ones_op1_counterfactual.prompt: The difference between 87 and 66 is: 
ones_op2_counterfactual.prompt: The difference between 81 and 60 is: 
tens_op1_counterfactual.prompt: The difference between 71 and 66 is: 
tens_op2_counterfactual.prompt: The difference between 81 and 76 is: 
ones_carry_counterfactual.prompt: The difference between 89 and 64 is: 
tens_carry_counterfactual.prompt: The difference between 81 and 66 is: 