Standard Form: Practice Questions

• a.\( 4.2 \times 10^{-4} \)
• b.\( 42 \times 10^{-6} \)
• c.\( 0.42 \times 10^{-4} \)
• d.\( 4.2 \times 10^{-5} \)

• a.\( 1.9 \times 10^{-1} \text{ cm} \)
• b.\( 1.9 \times 10^2 \text{ cm} \)
• c.\( 19 \times 10^0 \text{ cm} \)
• d.\( 1.9 \times 10^1 \text{ cm} \)

• a.\( 1.3 \times 10^5 \)
• b.\( 7.3 \times 10^{10} \)
• c.\( 73 \times 10^4 \)
• d.\( 7.3 \times 10^5 \)

• a.\( 15 \times 10^4 \)
• b.\( 1.5 \times 10^4 \)
• c.\( 1.5 \times 10^5 \)
• d.\( 1.5 \times 10^{-12} \)

• a.\( 3.52 \times 10^{-8} \)
• b.\( 35.2 \times 10^{-8} \)
• c.\( 3.52 \times 10^{-9} \)
• d.\( 3.52 \times 10^{-7} \)

Write your answer out first, then check it against the worked solution.