A decimal exponent is a way of writing really big or really small numbers using a special kind of shorthand. It's kind of like having a secret code that only smart mathematicians know!
Imagine you have a recipe for baking a cake that tells you to add 1 cup of sugar. But what if you want to make a really big cake, and you need to add 100 cups of sugar? That's a lot to write out!
Instead of writing 100 cups of sugar, you can write it in decimal exponent form, like this: 1 x 10^2. The 2 tells you how many zeros to add after the 1, so you know to add two zeros and end up with 100.
But what if you need to add a really tiny amount of sugar, like 0.001 cups? That's really hard to measure!
Instead of writing 0.001 cups of sugar, you can write it in decimal exponent form, like this: 1 x 10^-3. The negative exponent tells you to move the decimal point three places to the left, so you end up with 0.001.
Decimal exponents are really useful for scientists and mathematicians who work with really big or really small numbers, like distances in space or molecules in a chemical reaction. They make it easier to write and understand these numbers, and help us solve complex problems.