Question 1: Write 3,600,000,000 in scientific notation.

Answer: 3.6 x 10^9

Question 2: Express 0.0000456 in scientific notation.

Answer: 4.56 x 10^-5

Question 3: Calculate the value of 5.2 x 10^3 + 1.3 x 10^4. Show your working.

Answer: 13200

Question 4: Convert 7.89 x 10^5 to a standard number.

Answer: 789000

Question 5: Plot the graph of y=2x for x values from 1 to 5. (Draw on grid)

Answer:

Question 6: Construct a triangle with side lengths 1.2 x 10^2, 3.4 x 10^2, and 4.6 x 10^2. (Draw on grid)

Answer:

Question 7: In a science experiment, a sample weighs 2.5 x 10^4 grams. Rewrite this in standard form.

Answer: 25000

Question 8: Identify and correct the mistake: 2.3 x 10^3 = 2,300,000.

Answer: Incorrect; 2.3 x 10^3 = 2300, not 2,300,000.

Question 9: Express 9.1 x 10^-4 as a decimal number.

Answer: 0.00091

Question 10: A car travels 2.5 x 10^7 meters in a day. How many kilometers is this? (Recall 1000 meters = 1 km)

Answer: 25000 km

Question 11: Challenge: Write 9.999999 x 10^8 in standard form without using scientific notation.

Answer: 999999900

Question 12: Explain why 4.5 x 10^2 is greater than 3.9 x 10^3.

Answer: Because 4.5 x 10^2 = 450, which is less than 3.9 x 10^3 = 3900, so the statement is false.