prompt: Q: How much is 81 minus 13? A: 
random_counterfactual.prompt: Q: How much is 72 minus 11? A: 
ones_op1_counterfactual.prompt: Q: How much is 87 minus 13? A: 
ones_op2_counterfactual.prompt: Q: How much is 81 minus 10? A: 
tens_op1_counterfactual.prompt: Q: How much is 61 minus 13? A: 
tens_op2_counterfactual.prompt: Q: How much is 81 minus 43? A: 
ones_carry_counterfactual.prompt: Q: How much is 89 minus 11? A: 
tens_carry_counterfactual.prompt: Q: How much is 81 minus 13? A: 