Indices and Standard Form

Write 800.625 in standard form.

Write 950 000 000 in standard form.

Write 0.005 in standard form.

Write 140 million people in standard form.

Write 6.365 x 10^3 in ordinary number.

Write 7.35 x 10^-1 in ordinary number.

Write 0.0001676 in standard form to 2 significant figures

Calculate 5.25 x 10^6 + 3.4 x 10^5. Give your answer in standard form.

Calculate 4.12 x 10^-4 - 6.5 x 10^-2. Give your answer in standard form to 2 significant figures.