Evaluate Using Scientific Notation 1.810^-2-3.910^-3

$1.8 \cdot 10^{- 2} - 3.9 \cdot 10^{- 3}$

Step 1

Move the decimal point in $- 3.9$ to the left by $1$ place and increase the power of $10^{- 3}$ by $1$ .

$1.8 \cdot 10^{- 2} - 0.39 \cdot 10^{- 2}$

Step 2

Factor $10^{- 2}$ out of $1.8 \cdot 10^{- 2} - 0.39 \cdot 10^{- 2}$ .

$(1.8 - 0.39) \cdot 10^{- 2}$

Step 3

Subtract $0.39$ from $1.8$ .

$1.41 \cdot 10^{- 2}$

Evaluate Using Scientific Notation 1.8*10^-2-3.9*10^-3