🔢 MathLevel 1Lesson 30
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Making Change Up to 10

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Learning Objectives

  • 1Calculate change when paying with a dime (10¢) by subtracting the price from 10
  • 2Explain what change means in a real buying situation
  • 3Check change using the equation price + change = amount paid
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Mini Lesson

When you pay more than the price of an item, the seller gives you back the extra money. That extra money is called change. To find the change, we subtract the price from the amount we paid.

Change formula

  • Change = Amount paid − Price
  • Example: Pay 10¢, price is 6¢ → 10 − 6 = 4¢ change

Count-up strategy

  • Start at the price.
  • Count up until you reach what you paid.
  • How many steps you counted = the change.
  • Example: price 6¢, paid 10¢ → count 7, 8, 9, 10 = 4 steps = 4¢

Check your answer

  • Price + Change = Amount paid
  • 6¢ + 4¢ = 10¢ ✓

Zero change

  • If the price equals what you pay, change = 0¢.
  • 10 − 10 = 0
Change equation: 10 minus 6 equals 4 cents, with a check showing 6 plus 4 equals 10A box showing the equation 10 minus 6 equals 4 cents change, with a check equation below: 6 plus 4 equals 10.Making ChangePaid 10¢ − Price 6¢ = Change10 − 6 = 4¢Check: price + change = paid6 + 4 = 10 ✓The check confirms the change is right!
Paid 10¢, price 6¢, change = 4¢. Check: 6 + 4 = 10 ✓.
Count-up number line and three change examplesA number line from 6 to 10 showing 4 jumps for change of 4 cents, and a table of three examples.Count-Up Strategy6¢78910¢4 jumps = 4¢ changePricePaidChange3¢10¢7¢8¢10¢2¢10¢10¢0¢10 − price = change
Count-up number line and three examples showing how change is calculated from 10¢.
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Always check: price + change = 10¢. If it works, your change is correct!

Vocabulary
Change
The money the seller gives back when you pay more than the pricee.g. Paid 10¢, price 6¢ → change 4¢
Count up
Start at the price and count forward to the amount you paide.g. 6 → 7, 8, 9, 10 = 4 steps
Subtract
Take the smaller number away from the bigger numbere.g. 10 − 6 = 4
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← Lesson 29: Buying and Selling in a Mini-ShopLesson 31: Real-Life Money Examples →