prompt: Q: How much is 83 minus 20? A: 
random_counterfactual.prompt: Q: How much is 82 minus 31? A: 
ones_op1_counterfactual.prompt: Q: How much is 89 minus 20? A: 
ones_op2_counterfactual.prompt: Q: How much is 83 minus 21? A: 
tens_op1_counterfactual.prompt: Q: How much is 43 minus 20? A: 
tens_op2_counterfactual.prompt: Q: How much is 83 minus 40? A: 
ones_carry_counterfactual.prompt: Q: How much is 91 minus 28? A: 
tens_carry_counterfactual.prompt: Q: How much is 83 minus 20? A: 