prompt: Q: What is the result of 67 minus 21? A: 
random_counterfactual.prompt: Q: What is the result of 50 minus 28? A: 
ones_op1_counterfactual.prompt: Q: What is the result of 67 minus 21? A: 
ones_op2_counterfactual.prompt: Q: What is the result of 67 minus 20? A: 
tens_op1_counterfactual.prompt: Q: What is the result of 37 minus 21? A: 
tens_op2_counterfactual.prompt: Q: What is the result of 67 minus 31? A: 
ones_carry_counterfactual.prompt: Q: What is the result of 72 minus 26? A: 
tens_carry_counterfactual.prompt: Q: What is the result of 67 minus 21? A: 