Question

simplify the following expression: (6.8 × 10^3) ×(4.54 × 10^6)

Answer 1

$(6.8\cdot10^3)\cdot(4.54\cdot10^6)=(6.8\cdot4.54)\cdot(10^3\cdot10^6)=30.872\cdot10^{3+6}\\\\=30.872\cdot10^9=3.0872\cdot10^{10}$