6th grade Q2
When you see a number written with a little number above and to the right, you're looking at exponential notation. It's a quick way to say "multiply this number by itself this many times." Here’s how it works:
The Main Number:
This is the number you start with. It’s called the base. Think of it as the number you keep multiplying.
The Little Number:
This is the small number above and to the right of the main number. It tells you how many times to multiply the base by itself. It’s called the exponent.
How to Do It:
- If the exponent is 3 (like in ):
You multiply 2 by itself three times:
- If the exponent is 5 (like in ):
You multiply 3 by itself five times:
- If the exponent is 1 (like in ):
You just have the number itself, because multiplying it once by itself is still the same number:
.
- If the exponent is 0 (like in ):
Any number to the power of zero is 1. It's like a reset button that makes any big or small number turn into 1:
Example to try:
- Let’s say you have (which reads as "four to the power of three"):
Multiply 4 by itself three times:
So, is 64.