A brand new quiz places your on a regular basis maths abilities to the check in honour of Nationwide Numeracy Day on Could 18.
If you've aged out of faculty, maths as an grownup includes beneficial resolution making, from determining a procuring low cost to scaling up a recipe.
It comes as analysis discovered thousands and thousands of Brits are burying their heads within the sand over the rise in the price of dwelling as a result of they lack the arrogance to work issues out.
A examine of greater than 3,000 adults discovered of the 40 per cent avoiding the subject, almost seven in 10 really feel there's little they will do, or that it is merely out of their management, the Mirror reported.
As many as 69 per cent mentioned their lack of mathematical capability hasn't been an enormous downside for them previously - till now, as the price of dwelling disaster bites.
Nationwide Numeracy Day is run by the charity Nationwide Numeracy and Founding Supporter KPMG, which commissioned the analysis.
Bina Mehta, Chair of the skilled providers agency within the UK, mentioned: "The rising value of dwelling places our nation's numeracy abilities firmly below the microscope.
"All of us use numbers to navigate day-to-day life - from understanding rates of interest to understanding worth for cash whereas procuring - but almost half of the UK's working inhabitants has the anticipated numeracy ranges of a major faculty little one.
"That has actual penalties for these missing confidence, leaving them extra weak to debt, unemployment and fraud.
"Past the regarding influence on people, poor numeracy abilities additionally inhibit our nation's productiveness and talent to sort out inequality.
"Numeracy - alongside literacy and lifelong studying - is a key constructing block for improved social mobility. It lays the muse for a more healthy and extra inclusive economic system."
It additionally emerged that whereas half of adults mentioned they confidently know their complete month-to-month outgoings, 45 per cent rely both solely or partially on another person to maintain the payments for them.
And the latest worth hikes have left 45 per cent struggling to price range, 37 per cent baffled about how a lot issues ought to value any extra, and 57 per cent in search of methods to stretch their money additional.
Greater than a 3rd (36 per cent) additionally admitted it's simply too worrying to even start to consider how they are going to pay the payments.
However the examine discovered 38 per cent really feel uncomfortable in search of assist with on a regular basis maths.
Sam Sims, Chief Govt of charity Nationwide Numeracy, mentioned: "As this new analysis exhibits, low numeracy can forestall us from being answerable for our cash and in search of assist when we have to.
"However everybody can enhance their confidence with numbers. Nationwide Numeracy has helped over 420,000 folks just do that.
"Feeling assured with maths may also help us make sense of our cash and with the price of dwelling disaster, that is extra necessary than ever.
"Nationwide Numeracy Day raises consciousness of the significance of numeracy to non-public lives, profession improvement and the economic system.
"And it empowers folks to take the primary steps to enhancing their quantity confidence and abilities at this important time."
Some examples of on a regular basis maths would possibly embrace adjusting a recipe to serve extra or fewer folks or understanding in the event that they've acquired the right change.
A 3rd mentioned previous experiences have made them doubt their arithmetic capability, and the identical quantity really feel they at all times appear to get issues incorrect.
Of those that do lack number-confidence, 49 per cent want to enhance their numeracy, however do not know the place to start out.
Whereas 49 per cent have made jokes about their lack of numeracy abilities to make mild of one thing they really fear about.
However 48 per cent imagine a insecurity surrounding numeracy has held them again, in response to the OnePoll figures.
Bina Mehta from KPMG UK added: "Almost a 3rd of individuals imagine that if you're dangerous with numbers, there is no such thing as a manner to enhance, however we have to dispel that fable. It is a ability like some other that may be improved.
"Now greater than ever, our collective efforts will assist to enhance quantity confidence for all. It is probably not a silver bullet in fixing the price of dwelling disaster alone, however it's on the coronary heart of serving to folks confidently navigate it."
If you would like to enhance your individual numeracy abilities, then head to https://www.nationalnumeracy.org.uk/problem/media.