Evaluate Using Scientific Notation (2.110^-3)(310^-2)

$(2.1 \cdot 10^{- 3}) (3 \cdot 10^{- 2})$

Group coefficients together and exponents together to multiply numbers in scientific notation.

$(2.1 \cdot 3) (10^{- 3} \cdot 10^{- 2})$

Multiply $2.1$ by $3$ .

$6.3 (10^{- 3} \cdot 10^{- 2})$

Multiply $10^{- 3}$ by $10^{- 2}$ by adding the exponents.

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$6.3 \cdot 10^{- 3 - 2}$

Subtract $2$ from $- 3$ .

$6.3 \cdot 10^{- 5}$

Evaluate Using Scientific Notation (2.1*10^-3)(3*10^-2)