Credit Card Interest & Paycheck Practice
Credit card interest is the monthly rate (APR divided by 12) times the balance, and a paycheck is gross pay minus Social Security, Medicare and income tax. These games let kids practice both by building every number themselves. They suit roughly grades 6 to 8 and are free with no sign-up and no ads.
Instead of a worksheet, kids drag a payment and watch interest eat it first, step a balance month by month to zero, and cut a paycheck into its deduction slices to find the take-home pay.
4 Credit Cards & Paychecks Games
- Credit Card ClimbGrades 6–8Build every number on a credit card statement: turn the APR into a monthly rate, set the month's interest on a 1%-block ruler, roll the balance forward, drag a payment to see how little of the minimum reaches the balance, and step months until the card is paid off.
- Paycheck PlannerGrades 6–8Drag the paycheck bar to build gross pay from hours, overtime or salary, cut out Social Security, Medicare and income-tax slices to the cent, keep the take-home pay, then work backward from a take-home goal to the hours or gross.
- Interest IslandGrade 7Dial the rate and the years and watch a principal bar grow one yearly interest block at a time to the target line, extend or cut a price bar by a markup or markdown percent, and set the percent error of an estimate against the actual bar.
- Tip & Tax TillGrades 5–6Stack 10% and 1% chunks of a bill to build a tip or sales tax and read the new total off the money scale.
Common Questions
How do you calculate credit card interest for one month?
Divide the APR by 12 to get the monthly rate, then multiply it by the balance. A 24 percent APR is 2 percent a month, so a 500 dollar balance adds 10 dollars of interest that month. Pay the full statement balance by the due date and you pay no interest at all.
Why does paying only the minimum take so long?
Each payment pays the month's interest first, and only what is left reduces the balance. When the minimum is close to the interest, the balance barely moves, so payoff can take years and cost far more than the original purchases.
How do you calculate net pay from gross pay?
Start with gross pay (hourly rate times hours, or salary divided by the number of paychecks). Subtract Social Security (6.2 percent), Medicare (1.45 percent), income tax withholding and any other deductions. What is left is net, or take-home, pay.
What grade learns about credit cards and paychecks?
These are percent applications usually met in grades 6 to 8 and in middle and high school personal finance classes. Each card shows its grade range.
Are these games free?
Yes. They are free with no ads, no in-app purchases and no sign-up.
More Money Math
Counting Money · Discounts & Percent · Tip, Tax & Interest · Budgeting & Saving
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