Difference is like when you have two bowls of candy. One bowl has five candies, and the other bowl has three candies. The difference is how many more candies are in the first bowl compared to the second bowl. In this case, the difference is two candies because five minus three equals two.
Think about your socks. If you have seven pairs of socks with stripes and four pairs with dots, the difference is how many more striped socks you have than dotted ones. So, you have three more striped socks because seven minus four equals three.
Imagine drawing with crayons. You have ten red crayons and six blue crayons. The difference is the extra red crayons you have. You have four more red crayons because ten minus six equals four.
Difference can also be like when you and your friend jump. If you jump high and your friend jumps low, the difference is how much higher you jump than your friend. If you jump two feet high and your friend jumps one foot high, the difference is one foot.