prompt: Q: How much is 71 minus 64? A: 
random_counterfactual.prompt: Q: How much is 90 minus 20? A: 
ones_op1_counterfactual.prompt: Q: How much is 76 minus 64? A: 
ones_op2_counterfactual.prompt: Q: How much is 71 minus 60? A: 
tens_op1_counterfactual.prompt: Q: How much is 81 minus 64? A: 
tens_op2_counterfactual.prompt: Q: How much is 71 minus 24? A: 
ones_carry_counterfactual.prompt: Q: How much is 77 minus 60? A: 
tens_carry_counterfactual.prompt: Q: How much is 71 minus 64? A: 