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Budgeting & Saving: fun facts and quiz
The essentials in 7 ideas, with fun facts, an illustrated story and a quiz to see how much you know.
The essentials
What a Budget Is
A budget is a plan for your money: what comes in, what goes out and what’s left. Writing it down shows where your money really goes.
Key fact
Small daily spends add up: 3 a day is over 1,000 a year.
Needs & Wants
Needs are things you must pay for, like rent, food and bills. Wants are nice extras, like takeaways or new gadgets. Budgets usually cover needs first.
Key fact
The 50/30/20 rule: 50% needs, 30% wants, 20% saving.
Emergency Funds
An emergency fund is money set aside for surprises, like a broken phone or a lost job. A common goal is three to six months of essential costs.
Key fact
A cushion helps you avoid expensive borrowing.
Pay Yourself First
Paying yourself first means moving money into savings as soon as you’re paid, before spending. Automating it makes saving happen without willpower.
Key fact
Automatic transfers turn saving into a habit.
Compound Interest
With compound interest, you earn interest on your interest too. Over the years it snowballs: money growing at 7% a year roughly doubles in about 10 years.
Key fact
The rule of 72: divide 72 by the rate to estimate the years to double.
Inflation & Your Savings
Inflation means prices rise over time, so cash buys a little less each year. Savings earning less interest than inflation slowly lose value.
Key fact
At 3% inflation, prices double in about 24 years.
Costly Debt
Borrowing costs money. Credit card debt often charges 20% a year or more, so paying only the minimum can take years and cost far more than you borrowed.
Key fact
Paying off high-interest debt is like earning that rate.
Fun facts
“Budget” comes from an old French word for a small leather bag or purse.
The 50/30/20 rule was popularised by Elizabeth Warren, later a US senator, in a 2005 book.
Surveys in many rich countries find that lots of adults couldn’t cover a surprise bill of a few hundred euros from savings.
“Pay yourself first” was popularised by a 1926 book, The Richest Man in Babylon.
In 1790, Benjamin Franklin left 1,000 pounds each to Boston and Philadelphia, to grow for 200 years.
Some products fight inflation by quietly shrinking instead of costing more. It’s called shrinkflation.
At 20% interest, an unpaid card debt can double in under four years.
Story: Franklin’s 200-Year Gift
Franklin’s 200-Year Gift
1790. Benjamin Franklin dies and leaves £1,000 each to Boston and Philadelphia, with orders to lend it to young tradesmen, at interest, for 200 years.
He even planned ahead: after a century, part could be spent on public works, and the rest should keep growing for another hundred years.
By 1990, Boston’s fund had grown to about $5 million, and Philadelphia’s to about $2 million. That’s compound interest, given time.
True or false?
Tap your answer to see if you got it, and why.
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Question 1 of 10
A budget tracks the money coming in and going out.
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True. Income, spending, and what’s left over.
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Question 2 of 10
Rent is usually a need.
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True. A roof over your head comes first.
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Question 3 of 10
An emergency fund is meant for unexpected costs.
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True. Not for holidays: for the things you can’t plan for.
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Question 4 of 10
Saving whatever is left at the end of the month is “paying yourself first”.
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False. It means saving first, as soon as you’re paid.
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Question 5 of 10
Compound interest means earning interest on past interest.
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True. That’s what makes it snowball.
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Question 6 of 10
If inflation beats your interest rate, your savings lose buying power.
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True. Your balance grows more slowly than prices.
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Question 7 of 10
Paying off high-interest debt is like earning that rate.
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True. Every euro repaid stops costing you 20%.
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Question 8 of 10
Budgets are only useful for people with high incomes.
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False. A budget helps most when money is tight.
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Question 9 of 10
In the 50/30/20 rule, 50% goes on wants.
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False. 50% on needs, 30% on wants and 20% on saving.
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Question 10 of 10
An emergency fund makes costly borrowing more likely.
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False. It helps you avoid it.
Keep going in the app
KnowSoda learns what you know and brings back what you’re about to forget. Budgeting & Saving has 6 more ideas at the Advanced and Expert levels.
Sources
- UK MoneyHelper — Budgeting and saving guides
- U.S. Consumer Financial Protection Bureau — Emergency savings, credit cards
- Investor.gov (U.S. SEC) — Compound interest and the rule of 72
- Elizabeth Warren & Amelia Warren Tyagi (2005), All Your Worth: the 50/30/20 rule
- European Commission — Deposit guarantee schemes
- Money Helper (UK) — Budgeting and saving guides
