Note: This is the Solution of exercise 2.1 from newly published book by PCTB (Punjab Curriculum and Textbook Board, Pakistan) for new 9th session 2025 Onward.
Exercise 2.1
Question # 01: Express the following numbers in scientific notation.
\((i)\) \(\quad\) \(2000000 \)
\((ii)\) \(\quad\) \(48900 \)
\((iii)\) \(\quad\) \( 0.0042\)
\((iv)\) \(\quad\) \(0.0000009 \)
\((v)\) \(\quad\)\( 73 \times 10^3 \)
\((vi)\) \( \quad\) \(0.65 \times 10^2 \)
Question 2: Express the following numbers in ordinary notation.
\((i)\) \(\quad\) \(8.04 \times 10^2 \)
\((ii)\) \(\quad\) \(3\times 10^5 \)
\((iii)\) \(\quad\) \(1.5\times 10^{-2} \)
\((iv)\) \(\quad \)\(1.77 \times 10^7 \)
\((v)\) \(\quad\) \(5.5 \times 10^{-6} \)
\((vi)\) \(\quad\) \(4 \times 10^{-5} \)