prompt: The difference between 51 and 21 is: 
random_counterfactual.prompt: The difference between 89 and 44 is: 
ones_op1_counterfactual.prompt: The difference between 56 and 21 is: 
ones_op2_counterfactual.prompt: The difference between 51 and 20 is: 
tens_op1_counterfactual.prompt: The difference between 31 and 21 is: 
tens_op2_counterfactual.prompt: The difference between 51 and 11 is: 
ones_carry_counterfactual.prompt: The difference between 56 and 27 is: 
tens_carry_counterfactual.prompt: The difference between 51 and 21 is: 