At the time of writing ... the tricky first-grade math problem that had one dad stumped. Reddit/u/beachITguy It reads: "Higher Order Thinking. Can you prove that 4 + 2 = 5 + 1 is true without ...

Languages: English. You can get in touch with Jack by emailing [email protected] A dad was left scratching his head over his daughter's second grade math homework, which focused on how best ...