prompt: Q: What is 51 minus 21? A: 
random_counterfactual.prompt: Q: What is 50 minus 48? A: 
ones_op1_counterfactual.prompt: Q: What is 52 minus 21? A: 
ones_op2_counterfactual.prompt: Q: What is 51 minus 20? A: 
tens_op1_counterfactual.prompt: Q: What is 71 minus 21? A: 
tens_op2_counterfactual.prompt: Q: What is 51 minus 31? A: 
ones_carry_counterfactual.prompt: Q: What is 53 minus 25? A: 
tens_carry_counterfactual.prompt: Q: What is 51 minus 21? A: 