Question 1: Write the number: five million three hundred twenty thousand one hundred forty-five.

Answer: 5302145

Question 2: Identify the error in writing the number: 7,052,034 instead of 7,520,034.

Answer: The digits '5' and '0' are misplaced; the correct number is 7,520,034, not 7,052,034.

Question 3: Construct the number with the following digits: 9, 5, 0, 2, 4, 7. Write the largest possible number.

Answer: 9,754,420

Question 4: Place these digits correctly to form a number: 4, 0, 7, 2, 5, 9. Write the number in words.

Answer: Nine million two hundred fifty thousand four hundred seven

Question 5: Identify the common misconception: Students often confuse the placement of 'million' and 'thousand' in writing numbers. Explain why this mistake can occur.

Answer: Because 'thousand' and 'million' are both large place values, students may confuse their positions, especially when not attentive to the place value system.

Question 6: Write the number: four million six hundred eight thousand three hundred twenty-five. Show your working in the grid.

Answer: 4608325

Question 7: Plot the graph of y = 2x for x values from 1 to 5 on the grid.

Answer: See full answer key

Question 8: Construct a number with the digits 8, 3, 1, 9, 2, 7 that is closest to five million. Write the number.

Answer: 4,983,217

Question 9: A student wrote the number 12,345,678 as 1,234,5678. Identify and correct the mistake.

Answer: The mistake is placing a comma incorrectly; the correct form is 12,345,678.

Question 10: Challenge: Write the number ten million five hundred thousand six hundred seventy-two in digits, then verify the place value of the digit '6' in the number.

Answer: 10005700672; The '6' is in the hundreds place of the thousands part, representing six hundred.

Question 11: Mixed review: Write the number 3,007,006 in words and identify any common mistakes when writing such numbers.

Answer: Three million seven thousand six; Mistakes include omitting zeros or misplacing commas.