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Innumeracy is a term used to refer to a growing trend in the inability of people to understand numbers, statistics, and probabilities. The first use of "numeracy" as an analogue to literacy was in a 1959 report by Geoffrey Baron Crowther and the derivation "innumeracy" was coined by Douglas Hofstadter and popularized by the book of the same title by John Allen Paulos. Numbers and probabilities are often essential to understanding the world, and ignorance, or even an anti-intellectual stance against understanding how they work, can lead to significant consequences personally and for society as a whole. The potential problems caused by innumeracy are, it must be said, innumerable.
 What is numeracy
Numeracy is generally defined as an understanding of, and ability to do basic manipulations with numbers. Addition, subtraction, multiplication, division, fractions, percents, and decimals. When looking at basic innumeracy, it does not include algebra, geometry or calculus. The point is pretty simple: our kids, and in fact most of the adults in studies done in the US and UK, are unable to easily figure out the cost per item or how much they are saving if something is "25%" off.
 Do numbers matter?
One criticism often brought up is the question of just how important skills like numbers and spelling are, in a world of calculators and spell check. After all, most people no longer know how to build a good fire, bake from scratch, or even sew on a button. Everyone carries a calculator with them, in the form of their phone; their browsers check the spelling as they type, and if they really need something, they can find a way to get the information. 
- Working numbers trains a mind for logical, critical thinking. The fact is, math, even basic numeracy, is a logically derived system. Learning to manipulate basic numbers gives you an entry into the thought processes that critical thinking are built upon.
- Basic numeracy allows people to make everyday comparisons. "Is this can of tuna that is 2 times the size of that can of tuna, a better deal, even though it is more expensive?" "Did turning off the lights really affect my utility bill?"
- Numeracy helps in understanding statistics, and therefore being able to understand how to better take risks, or who is selling you a load of bull.
- Numeracy helps you understand major life decisions like when to buy a house, and how to buy a house. If more people had better numeracy skills, they might not have been as willing to buy houses they could not afford, or waive payments off for 5 years, only to be hit with rates that are significantly beyond their reach.
While it is true that you can figure out all of these things with a calculator, people don't really bother. If they had a basic working grasp of these numbers, they could easily calculate much of this in their heads to make better decisions.
 Why are our kids innumerate
One question brought up is : Why has there been a drop off in children's numeracy levels over the years. While there are no easy answers, some places to be looked at are:
- Teachers do not know or like math.[Who?]
- Kids are drilled in rote fashion to pass tests. They learn to say "Three times three is nine". They do not grasp the significance of what multiplication is, nor how it relates to addition.
- Numbers are not given real world concepts. Negation and division are the two hardest things to grasp, when the numbers are just codes on a wall, with no attempt to truly consider what is happening with the concept of a "division".
 See also
- ↑ John O'Donoghue. Numeracy and Mathematics. Irish Math. Soc. Bulletin 48 (2002), 47–55
- ↑ Douglas Hofstadter's Innumeracy Exercises, jsomers.net
- ↑ Innumeracy: Mathematical Illiteracy and Its Consequences
- ↑ http://www.guardian.co.uk/commentisfree/2010/may/03/illiteracy-innumeracy-prisons
- ↑ http://www.psychologytoday.com/blog/freedom-learn/201003/when-less-is-more-the-case-teaching-less-math-in-schools