How to Teach Kids to Make Change (Without the Tears)

Making change is one of the most practical math skills a kid can learn — and one of the most frustrating to teach. The usual approach (subtract the price from what was paid, borrowing across decimals) turns a real-world skill into an abstract arithmetic chore. There's a better way, and it's the way actual cashiers do it: count up.

The counting-up trick

Instead of subtracting, start at the price and count up to the amount the customer paid. Whatever you counted is the change.

Example: hot cocoa costs $1.50 and the customer pays $2.00. Count up: $1.50 … $1.75 … $2.00. You counted 50¢ — that's the change. No borrowing, no decimal subtraction, just counting.

Teach kids to count up in the biggest jumps that fit: quarters first, then 50¢, then whole dollars. For $2.25 paid with $5.00: $2.25 … $2.50 … $3.00 … $4.00 … $5.00 — that's 25¢ + 50¢ + $1 + $1 = $2.75 change.

Why it clicks (and subtraction doesn't)

Counting up works because it matches what the child's hands are doing: picking up coins and laying them down, one jump at a time. Subtraction asks them to hold two numbers in their head and borrow across a decimal point — a working-memory workout that has nothing to do with actual cashiering. When my son learned to count up, change went from a dreaded worksheet to something he'd volunteer to do at a yard sale.

Make it physical first

Before any worksheet, hand your kid real coins (or cut-out play money) and play store. You're the customer; they're the cashier. Start with easy ones — 50¢ item, $1 paid — and let them physically count up with the coins in their hand. The worksheet should come after the coins make sense, not before.

Practice it on paper

Once the counting-up motion feels natural, a worksheet locks it in. I made a free one for exactly this: Cashier Challenge — your child plays cashier for 6 customers, counts up the change for each, and cuts out their own play money (bills and coins) to count it out for real. It's two pages, grades 2–4, and includes a grown-ups-only answer key.

When they're ready for the full job

Making change is one cashier skill — the full job also means adding up orders and writing receipts. That's The Lunch Rush ($5): kids run a whole lemonade stand across 11 pages, making change during the rush, totaling orders, and writing real receipts. It's the natural next step after the Cashier Challenge, and it uses the same count-up method throughout.