Make Change and Notice Short Payments

5 questions0m 0s

Learn the skill

If payment is greater than the price, subtract price from payment to find change. Check price + change = payment. Equal amounts need zero change. If payment is less than the price, more money is needed; do not return change.

Worked example

For a 47-cent price and a 100-cent payment, count up 3 cents to 50, then 50 cents to 100. Return 3 + 50 = 53 cents. Check 47 + 53 = 100.

Count up from a 47-cent price: add 3 to reach 50, then add 50 to reach 100 cents paid. Return 53 cents. — Schematic steps, not a distance scale. Price plus change must equal payment.

Stated Pretend Prices

Every amount is in cents. These classroom purchases have no tax, fees or discounts. Work from the stated price and payment for each question. No real money or S3U earned coins are being spent.

Question 1 An item costs 63 cents. The payment is 100 cents. How many cents should be returned? Answer

Question 2 A change tray has 10c + 10c + 10c + 5c + 1c + 1c. How many cents does it hold? Answer

Question 3 The price and payment are both 75 cents. How many cents of change are needed? Answer

Question 4 The price is 90 cents, but the offered payment is 70 cents. What happens? Return 20 cents 20 more cents are needed Return 70 cents

Question 5 A purchase costs 125 cents and the payment is 200 cents. What is the change in cents? Answer