prompt: Q: How much is 86 minus 49? A: 
random_counterfactual.prompt: Q: How much is 61 minus 18? A: 
ones_op1_counterfactual.prompt: Q: How much is 89 minus 49? A: 
ones_op2_counterfactual.prompt: Q: How much is 86 minus 43? A: 
tens_op1_counterfactual.prompt: Q: How much is 86 minus 49? A: 
tens_op2_counterfactual.prompt: Q: How much is 86 minus 39? A: 
ones_carry_counterfactual.prompt: Q: How much is 88 minus 41? A: 
tens_carry_counterfactual.prompt: Q: How much is 86 minus 49? A: 