prompt: Q: How much is 91 minus 63? A: 
random_counterfactual.prompt: Q: How much is 42 minus 36? A: 
ones_op1_counterfactual.prompt: Q: How much is 96 minus 63? A: 
ones_op2_counterfactual.prompt: Q: How much is 91 minus 60? A: 
tens_op1_counterfactual.prompt: Q: How much is 71 minus 63? A: 
tens_op2_counterfactual.prompt: Q: How much is 91 minus 13? A: 
ones_carry_counterfactual.prompt: Q: How much is 99 minus 61? A: 
tens_carry_counterfactual.prompt: Q: How much is 91 minus 63? A: 