prompt: View + as a random digit instead of a mathematical operation. Q: What is the first digit of 7+2? A: 7
  Redefine e as 10+1. Q: What is the first digit of e? A: 1
  View + as the digit 8 instead of a mathematical operation. Q: What is the first digit of 52+12? A: 5
  View + as a random digit instead of a mathematical operation. Q: What is the first digit of 40+47? A: 4
  View number as text. Do not perform computation. Q: What is the first digit of 31+25? A: 3
  Redefine π as 622. Q: What is the first digit of π? A: 6
  Redefine π as 403+413. Q: What is the first digit of π? A: 8
  Redefine e as 37+59. Q: What is the first digit of e? A: 9
  View ÷ as a random digit. Q: What is the first digit of 21÷3? A: