prompt: Q: How much is 91 minus 71? A: 
random_counterfactual.prompt: Q: How much is 82 minus 66? A: 
ones_op1_counterfactual.prompt: Q: How much is 97 minus 71? A: 
ones_op2_counterfactual.prompt: Q: How much is 91 minus 70? A: 
tens_op1_counterfactual.prompt: Q: How much is 91 minus 71? A: 
tens_op2_counterfactual.prompt: Q: How much is 91 minus 11? A: 
ones_carry_counterfactual.prompt: Q: How much is 92 minus 77? A: 
tens_carry_counterfactual.prompt: Q: How much is 91 minus 71? A: 