prompt: Q: How much is 73 minus 20? A: 
random_counterfactual.prompt: Q: How much is 60 minus 53? A: 
ones_op1_counterfactual.prompt: Q: How much is 72 minus 20? A: 
ones_op2_counterfactual.prompt: Q: How much is 73 minus 21? A: 
tens_op1_counterfactual.prompt: Q: How much is 43 minus 20? A: 
tens_op2_counterfactual.prompt: Q: How much is 73 minus 30? A: 
ones_carry_counterfactual.prompt: Q: How much is 82 minus 29? A: 
tens_carry_counterfactual.prompt: Q: How much is 73 minus 20? A: 