Try these math questions:
1. If the chance of getting a disease is 10 percent, how many people
out of 1,000 would be expected to get the disease?
2. If five people all have the winning numbers in the lottery, and the
prize is $2 million, how much will each of them get?
3. Let's say you have $200 in a savings account. The account earns 10
percent interest per year. How much would you have in the account at
the end of two years?
Then have your spouse, or potential spouse, try them.
According to the RAND corporation, couples in middle age who answer just these three questions correctly are likely to have much more net wealth than couples who do not. The average net wealth difference between couples with all three right to all three wrong or unanswered: $1.7 million to $200,000.