prompt: Q: What is 81 minus 40? A: 
random_counterfactual.prompt: Q: What is 44 minus 42? A: 
ones_op1_counterfactual.prompt: Q: What is 87 minus 40? A: 
ones_op2_counterfactual.prompt: Q: What is 81 minus 40? A: 
tens_op1_counterfactual.prompt: Q: What is 51 minus 40? A: 
tens_op2_counterfactual.prompt: Q: What is 81 minus 50? A: 
ones_carry_counterfactual.prompt: Q: What is 90 minus 49? A: 
tens_carry_counterfactual.prompt: Q: What is 81 minus 40? A: 