Counting Money and Money Math: Teaching a Skill Students Practice Less Every Year

Money used to teach itself. A student was handed a five-dollar bill, told to bring back the change, and quietly counted it in the car. Nobody planned those lessons. They just happened, several times a week, for years.

They mostly don't happen anymore. That changes what a money unit has to accomplish, and it changes who gets hurt when the unit is thin.

What money math used to get for free

Counting money was once the most heavily rehearsed topic in elementary mathematics, and almost none of that rehearsal happened at school. A student who bought something with cash practiced coin recognition, mixed-unit addition, subtraction across a decimal point, and estimation, all in about ten seconds at a counter.

That's why money always felt like the easy unit to teach. Teachers weren't building the skill from nothing. They were formalizing something students had already met.

What changed, in numbers

Cash went from roughly a third of all payments to about one in seven in under a decade. The Federal Reserve has run its Diary of Consumer Payment Choice every year since 2015, and the 2026 report is blunt about the trend. In 2016, "cash accounted for approximately one-third of all payments regardless of the consumer's age." By 2025, cash "accounted for an average of six payments per month (14% of total payments)" (Federal Reserve Financial Services).

The age pattern is the part that matters for a classroom. From the same report: "Consumers age 55 and older made an average of 10 monthly cash payments, whereas consumers age 18 to 24 only used cash for two payments per month." The adults modeling what paying looks like are increasingly tapping a phone. A 2nd grader in 2026 may go weeks without watching a cash transaction, let alone conducting one.

Meanwhile the standards were never carrying much of this load. Money gets one clause in one standard. Grade 2 asks students to "solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately," with the example "if you have 2 dimes and 3 pennies, how many cents do you have?" (2.MD.C.8). It sits under the heading "Work with time and money," filed as measurement, sharing a bullet with clock-reading.

After that, money doesn't return as its own topic at all. It reappears in grade 4 only as context, one item in a list: word problems "involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals" (4.MD.A.2).

There is no money domain. We read the full K–5 measurement progression looking for guidance on teaching coin recognition and found none; money shows up there only as word-problem scenery in the upper grades. So the incidental practice has thinned out, and the curriculum was always relying on it.

The part that flips the story: cash didn't leave, it concentrated

Here is where the easy conclusion goes wrong. The tidy version of this article would say cash is finished, so teach digital money instead. The Fed's data says something more specific and more useful.

Cash use has stabilized rather than collapsed. Four out of five consumers used cash in the last 30 days, and 90% "plan to continue using cash in the future." More people reported using cash in the past month than reported using credit cards or debit cards.

And cash has settled into particular places. Five out of six cash payments in 2025 were for transactions under $25. Cash lives in the small-value world, which is precisely the world of a 2nd-grade money problem.

More importantly, it settled into particular households. Consumers in households earning under $25,000 made more cash payments than those earning over $150,000, seven a month versus five. Broadened out, the report puts households above $100,000 at five cash payments, about 9% of their total, and households below $100,000 at seven, around 17%. Rural residents made nine a month against six for urban and suburban residents.

So the students most likely to handle real money are disproportionately the students from lower-income and rural households. A thin money unit doesn't shortchange everyone equally. It shortchanges the students for whom counting change is not a historical curiosity but a thing they will do. That is worth knowing before money gets cut for time.

None of this is a deficit. The Fed attributes cash preference to features other payment methods haven't replicated, including anonymity, near-universal acceptance, and the fact that it makes a budget visible.

Why counting money is harder than it looks

Two things make mixed coins genuinely difficult, and only one of them is about money.

The first is that our coins don't match our number system. Pennies, dimes and dollars line up neatly with ones, tens and hundreds of cents. Nickels and quarters don't, because 5 and 25 aren't powers of ten. A student with solid place value can count to 100 without hesitating and still stall on three quarters and two dimes, because the quarters demand a different kind of counting. When a student struggles here, the problem usually isn't the money. It's that we handed them units that break the pattern they just spent a year learning.

The second is that money is where students first meet decimals, whether anyone announces it or not. $1.50 is decimal notation. The authors of the Common Core made this connection explicitly: the figure illustrating decimal place value in their base-ten progression is a dollar, a dime and a penny, labeled "each piece is .1 or 1/10" and "each piece is .01 or 1/100," with division-by-ten arrows between them (Progressions, Number and Operations in Base Ten, K–5).

What to do about it

Three adjustments, none of which require buying anything.

1. Teach dimes and pennies before mixed coins. Dimes and pennies are tens and ones. Starting there means money reinforces place value instead of competing with it, and it gives students a foothold before quarters break the pattern. If place value itself is shaky, that's the actual lesson, and we wrote about it in Place Value for Kids.
2. Introduce quarters as their own problem. Not as one more coin, but as the coin that doesn't fit. Counting by 25s is a skill in itself. Treating it as such is more honest than expecting it to come along for free.
3. Don't assume the exposure. Ask a class how many of them have paid for something with cash this month. The answer will tell you how much of the groundwork you're building rather than reviewing, and it varies enormously between two classrooms in the same district.

Where Boddle Fits

Boddle is free for teachers and students, covers K–6 so money can come back in 4th grade with decimals instead of restarting in a new tool, and lets you either turn on the adaptive mode or assign 2.MD.C.8 yourself and keep control of who practices what. Since money problems are word problems, the read-aloud on both questions and answer choices matters here: a student who can do the arithmetic shouldn't be stopped by the reading.

Frequently asked questions

How do you teach counting money? Start with dimes and pennies rather than mixed coins, because dimes and pennies map directly onto tens and ones and reinforce place value instead of competing with it. Add nickels and quarters afterward as their own challenge, since counting by 5s and 25s is a separate skill. Then move to dollars-and-cents notation, which is where students meet decimals. Keep amounts under $25, where nearly all real cash transactions happen.

Why is counting money hard for kids? Two reasons. Our coins don't match our number system: pennies, dimes and dollars line up with ones, tens and hundreds, but nickels and quarters don't, because 5 and 25 aren't powers of ten. And students get far less incidental practice than they used to. Federal Reserve data shows 18-to-24-year-olds make about two cash payments a month against ten for people 55 and older, so today's students see fewer cash transactions modeled at home.

What grade do students learn about money? Second grade, formally. Standard 2.MD.C.8 asks students to solve word problems with dollar bills, quarters, dimes, nickels and pennies using $ and ¢ symbols. Money then disappears as its own topic and returns in fourth grade only as word-problem context, this time involving decimals, under 4.MD.A.2. There is no dedicated money domain in the standards, which is part of why the topic gets thin treatment.

Does counting coins still matter if nobody uses cash? Yes, and the data makes the case better than intuition does. Cash use has stabilized rather than disappeared: four in five consumers used cash in the past 30 days and 90% expect to keep using it. It's also unevenly distributed. Households earning under $25,000 make more cash payments than households over $150,000, and rural residents make more than urban ones. The students most likely to handle cash are the ones a skipped money unit fails.

Related reading

• Place Value for Kids: money is the concrete version of the base-ten system
• Telling Time for Kids: the standard sitting right beside money under "Work with time and money"
• 2nd Grade Math: where the money standard lands in the year
• 4th and 5th Grade Math: where money returns, now with decimals
• Why Fractions Are So Hard: the other place students meet parts of a whole