prompt: The difference between 54 and 20 is: 
random_counterfactual.prompt: The difference between 81 and 79 is: 
ones_op1_counterfactual.prompt: The difference between 51 and 20 is: 
ones_op2_counterfactual.prompt: The difference between 54 and 23 is: 
tens_op1_counterfactual.prompt: The difference between 74 and 20 is: 
tens_op2_counterfactual.prompt: The difference between 54 and 40 is: 
ones_carry_counterfactual.prompt: The difference between 61 and 27 is: 
tens_carry_counterfactual.prompt: The difference between 54 and 20 is: 