lesson
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Imagine walking into a grocery store with a pocket full of shiny coins.
How do you know if you have enough money to buy your favorite snack?
Finding the Total Cost
When you buy more than one item, you add their prices together to find the total cost.
Let's say a crisp red apple costs 40¢ and a yellow banana costs 25¢.
📊A visual shopping cart diagram on a clean card. On the left, an apple labeled '🍎 Apple: 40¢' (drawn with 4 dimes). In the middle, an addition plus sign. Next to it, a banana labeled '🍌 Banana: 25¢' (drawn with 2 dimes and 1 nickel). An arrow points to a shopping basket showing the sum: '40¢ + 25¢ = 65¢' with all coins grouped together (6 dimes and 1 nickel). Clean white background, soft rounded corners, colorful food illustrations, large clear text.
To add 40¢+25¢, you can add the tens first: 40+20=60¢, and then add the five ones: 60+5=65¢.
You put items in your cart, but what happens when you hand your money to the cashier?
Getting Your Change
When you pay with more money than the item costs, the cashier gives you back the extra amount, called change.
To find your change, you subtract the price of the item from the money you handed to the cashier.
📊A step-by-step change calculation diagram. Step 1: A child hands over a $1 bill labeled 'You Pay: $1.00 (100¢)'. Step 2: A juice box labeled 'Juice Box: 70¢'. Step 3: A subtraction equation box with large text '100¢ - 70¢ = 30¢'. Step 4: The cashier hands back 3 dimes labeled 'Your Change: 30¢'. Uses cute emoji icons for cashier and customer hands, clear coin visuals, light blue accents.
Since 1.00 is the same as 100¢, subtracting 70¢ gives 100−70=30¢ back in your pocket.