prompt: Q: How much is 67 minus 21? A: 
random_counterfactual.prompt: Q: How much is 37 minus 12? A: 
ones_op1_counterfactual.prompt: Q: How much is 62 minus 21? A: 
ones_op2_counterfactual.prompt: Q: How much is 67 minus 23? A: 
tens_op1_counterfactual.prompt: Q: How much is 77 minus 21? A: 
tens_op2_counterfactual.prompt: Q: How much is 67 minus 21? A: 
ones_carry_counterfactual.prompt: Q: How much is 70 minus 24? A: 
tens_carry_counterfactual.prompt: Q: How much is 67 minus 21? A: 