prompt: Q: What is 31 minus 30? A: 
random_counterfactual.prompt: Q: What is 39 minus 35? A: 
ones_op1_counterfactual.prompt: Q: What is 39 minus 30? A: 
ones_op2_counterfactual.prompt: Q: What is 31 minus 30? A: 
tens_op1_counterfactual.prompt: Q: What is 51 minus 30? A: 
tens_op2_counterfactual.prompt: Q: What is 31 minus 10? A: 
ones_carry_counterfactual.prompt: Q: What is 40 minus 39? A: 
tens_carry_counterfactual.prompt: Q: What is 31 minus 30? A: 