When I'm at the supermarket, I always use simple math to find the best deals on products. Here’s how I do it:

1. Price per Unit: I check the price for each unit of the product. For example, if I see two boxes of cereal—one costs £2 for 500g, and the other costs £3 for 1kg—I find out how much each gram costs.

   • For the first cereal:
     • £2 divided by 500g is £0.004 per gram.
   • For the second cereal:
     • £3 divided by 1000g is £0.003 per gram.

   This shows me that the second cereal is cheaper per gram, so it’s a better deal!

2. Comparing Products: Using this method helps me easily compare different brands or sizes. If I see that brand A is £1.50 for 250ml and brand B is £2.10 for 500ml, I would calculate:

   • Brand A:
     • £1.50 divided by 250ml is £0.006 per ml.
   • Brand B:
     • £2.10 divided by 500ml is £0.0042 per ml.

   Once again, brand B is the better value!

In real life, using these simple comparisons makes shopping easier and saves me money. Plus, it can be quite fun!