prompt: Q: How much is 61 minus 19? A: 
random_counterfactual.prompt: Q: How much is 71 minus 37? A: 
ones_op1_counterfactual.prompt: Q: How much is 69 minus 19? A: 
ones_op2_counterfactual.prompt: Q: How much is 61 minus 10? A: 
tens_op1_counterfactual.prompt: Q: How much is 91 minus 19? A: 
tens_op2_counterfactual.prompt: Q: How much is 61 minus 29? A: 
ones_carry_counterfactual.prompt: Q: How much is 63 minus 11? A: 
tens_carry_counterfactual.prompt: Q: How much is 61 minus 19? A: 