prompt: The difference between 81 and 40 is: 
random_counterfactual.prompt: The difference between 83 and 46 is: 
ones_op1_counterfactual.prompt: The difference between 88 and 40 is: 
ones_op2_counterfactual.prompt: The difference between 81 and 40 is: 
tens_op1_counterfactual.prompt: The difference between 51 and 40 is: 
tens_op2_counterfactual.prompt: The difference between 81 and 30 is: 
ones_carry_counterfactual.prompt: The difference between 90 and 49 is: 
tens_carry_counterfactual.prompt: The difference between 81 and 40 is: 