Question

4.5×10^-24-3×10^-25 step by step

Answer 1

Re write both numbers in same terms

`\begin{gathered} 4.5\cdot10^(-24)=45\cdot10^(-25) \\ 3\cdot10^(-25) \end{gathered}`

Solve the difference

`\begin{gathered} 45\cdot10^(-25)-3\cdot10^(-25)=(45-3)\cdot10^(-25) \\ (45-3)\cdot10^(-25)=42\cdot10^(-25) \end{gathered}`

4.5*10^-24-3*10^-25=42*10^-25