prompt: Q: What is 68 minus 29? A: 
random_counterfactual.prompt: Q: What is 88 minus 58? A: 
ones_op1_counterfactual.prompt: Q: What is 69 minus 29? A: 
ones_op2_counterfactual.prompt: Q: What is 68 minus 21? A: 
tens_op1_counterfactual.prompt: Q: What is 58 minus 29? A: 
tens_op2_counterfactual.prompt: Q: What is 68 minus 19? A: 
ones_carry_counterfactual.prompt: Q: What is 69 minus 20? A: 
tens_carry_counterfactual.prompt: Q: What is 68 minus 29? A: 