prompt: Q: How much is 87 minus 29? A: 
random_counterfactual.prompt: Q: How much is 47 minus 42? A: 
ones_op1_counterfactual.prompt: Q: How much is 89 minus 29? A: 
ones_op2_counterfactual.prompt: Q: How much is 87 minus 26? A: 
tens_op1_counterfactual.prompt: Q: How much is 87 minus 29? A: 
tens_op2_counterfactual.prompt: Q: How much is 87 minus 19? A: 
ones_carry_counterfactual.prompt: Q: How much is 88 minus 20? A: 
tens_carry_counterfactual.prompt: Q: How much is 87 minus 29? A: 