prompt: Q: How much is 83 minus 21? A: 
random_counterfactual.prompt: Q: How much is 86 minus 49? A: 
ones_op1_counterfactual.prompt: Q: How much is 87 minus 21? A: 
ones_op2_counterfactual.prompt: Q: How much is 83 minus 22? A: 
tens_op1_counterfactual.prompt: Q: How much is 33 minus 21? A: 
tens_op2_counterfactual.prompt: Q: How much is 83 minus 71? A: 
ones_carry_counterfactual.prompt: Q: How much is 90 minus 28? A: 
tens_carry_counterfactual.prompt: Q: How much is 83 minus 21? A: 