Sports betting may seem easy. It’s not. Here’s why

Updated Mar. 4, 2020 10:09 p.m. ET

ATLANTIC CITY, N.J. (AP) — Wanna bet on sports?

First, make sure you know what you're doing — and the odds against you.

Seven U.S. states now offer legal sports gambling, and as many as 30 more will consider jumping on board in 2019. So here are some of the basics — as well as some more esoteric aspects — of betting on sports.