100(20*40)

use the distributive property

so 100*20 and 100*40
then multiply them :)

100(20 * 40) = 100 * 800 = 80000.

To calculate 100 multiplied by the product of 20 and 40, follow the order of operations, which is also known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

First, calculate the product of 20 and 40 by multiplying them together:
20 * 40 = 800

Then, multiply the result by 100:
100 * 800 = 80,000

So, 100 multiplied by the product of 20 and 40 is equal to 80,000.