Almost a third of American adults don't have the math skills necessary to make effective decisions about their health and finances.
These 73 million people can count, sort, and do simple arithmetic. But they likely cannot select the health plan with the lowest cost based on annual premiums and deductibles, or figure out that they can't pay off credit card debt based on the amount they owe, minimum monthly payments, and an annual percentage rate.
These people are innumerate, meaning they're unskilled with numbers. Numerate people, in contrast, are mathematically proficient.