Goal of this activity:
Learn how estimation helps you shop faster! There are no right or wrong strategies here. You will see how your fast estimations compare to exact calculations.
- 1. Click two items on the shelf above to place them in the row.
- 2. Look up their prices on the Supermarket Shelf above.
- 3. Fill in your **Estimated Prices** and calculate your **Estimated Total** in your head.
- 4. Click **Compare to actual price** to see the actual math spectrum!
| No. |
Items to buy |
Your Estimates |
Explore |
Goal of this activity:
Estimate the difference between prices! Placing the more expensive item as Item 1 is a good strategy to avoid negative differences.
- 1. Click two items on the shelf above to place them in the row.
- 2. Look up their prices on the Supermarket Shelf above.
- 3. Fill in your **Estimated Prices** and calculate your **Estimated Difference**.
- 4. Click **Compare to actual price** to see the accuracy of your strategy.
| No. |
Items to buy |
Your Estimates |
Explore |
Goal of this activity:
Explore estimating product totals! Multiple quantities can amplify estimation errors, so let's observe how that looks.
- 1. Click one item on the shelf above, then click the **Dice** 🎲 to choose the purchase quantity.
- 2. Fill in your **Estimated Price** and calculate your **Estimated Total**.
- 3. Click **Compare to actual price** to view how estimation scales with quantities!
| No. |
Item & Quantity |
Your Estimates |
Explore |