prompt: Q: What is 87 minus 49? A: 
random_counterfactual.prompt: Q: What is 98 minus 89? A: 
ones_op1_counterfactual.prompt: Q: What is 89 minus 49? A: 
ones_op2_counterfactual.prompt: Q: What is 87 minus 42? A: 
tens_op1_counterfactual.prompt: Q: What is 57 minus 49? A: 
tens_op2_counterfactual.prompt: Q: What is 87 minus 49? A: 
ones_carry_counterfactual.prompt: Q: What is 88 minus 40? A: 
tens_carry_counterfactual.prompt: Q: What is 87 minus 49? A: 