-10²×0,2

To simplify this expression, follow the order of operations (also known as PEMDAS: Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).

First, calculate the exponent -10² which is equal to -10 multiplied by itself: -10 × -10 = 100.

Next, multiply the result (100) by 0.2: 100 × 0.2 = 20.

Therefore, -10² × 0.2 = 20.