1 trillion = 1012 1000 = 103 Then subtract exponents.
2 to the 3rd power times 5 to the third power
You can write it as 103. That would be the most common way, but there's many other correct ways to write it.
The exponents are added.
You can have negative exponents anywhere. When they are in the denominator, they are equivalent to positive exponents in the numerator of a fraction.
They are in exponents: 23*53 = 1000
As a product of its prime factors in exponents: 2^3 times 5^3 = 1000
23*53 = 1000
10^4
23 x 53
1 trillion = 1012 1000 = 103 Then subtract exponents.
2 to the 3rd power times 5 to the third power
Exactly that ... negative exponents. For example: 1000 = 103 That is a positive exponent. .001 = 10-3 That is a negative exponent. For positive exponents, you move the decimal place that many positions to the right, adding zeros as needed. For negative exponents, you move the decimal place that many positions to the LEFT, adding zeros as needed. And, the special case is this: 100 = 1.
Exactly that ... negative exponents. For example: 1000 = 103 That is a positive exponent. .001 = 10-3 That is a negative exponent. For positive exponents, you move the decimal place that many positions to the right, adding zeros as needed. For negative exponents, you move the decimal place that many positions to the LEFT, adding zeros as needed. And, the special case is this: 100 = 1.
1000^3 can be written as 1000 * 1000 * 1000. To simplify this use the fact that 1000 = 10^3 (ten to the third power). So 1000^3 = (10^3)^3 Now use the rules of exponents: (10^3)^3 = 10^9 = 1000000000 "one trillion"
You can write it as 103. That would be the most common way, but there's many other correct ways to write it.
When adding variables with exponents, you do neither. You only add the exponents if #1 The variables are the same character (such as they are both "a") #2 You are multiplying the variables (NOT ADDING, SUBTRACTING, OR DIVIDING) Using a simple concrete case may make this clearer: 10+2 times 10+3 equals 10+5 ( 100 times 1000 equals 100,000).