prompt: Q: How much is 37 minus 20? A: 
random_counterfactual.prompt: Q: How much is 71 minus 43? A: 
ones_op1_counterfactual.prompt: Q: How much is 31 minus 20? A: 
ones_op2_counterfactual.prompt: Q: How much is 37 minus 21? A: 
tens_op1_counterfactual.prompt: Q: How much is 47 minus 20? A: 
tens_op2_counterfactual.prompt: Q: How much is 37 minus 10? A: 
ones_carry_counterfactual.prompt: Q: How much is 40 minus 23? A: 
tens_carry_counterfactual.prompt: Q: How much is 37 minus 20? A: 