prompt: The difference between 21 and 20 is: 
random_counterfactual.prompt: The difference between 36 and 10 is: 
ones_op1_counterfactual.prompt: The difference between 27 and 20 is: 
ones_op2_counterfactual.prompt: The difference between 21 and 20 is: 
tens_op1_counterfactual.prompt: The difference between 71 and 20 is: 
tens_op2_counterfactual.prompt: The difference between 21 and 10 is: 
ones_carry_counterfactual.prompt: The difference between 30 and 29 is: 
tens_carry_counterfactual.prompt: The difference between 21 and 20 is: 