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Place Value and Number Forms

Math ⇒ Number and Operations

Place Value and Number Forms starts at 6 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Place Value and Number Forms. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
A scientist records a measurement as 2.34 × 10-5 meters. What is this value in decimal form?
Express 0.0000009 in scientific notation.
Express 0.00082 in scientific notation.
Express 3.75 × 10-4 in decimal form.
Express 4,507,200 in scientific notation.
Express 9,000,000 in scientific notation.
If a number is written as 2.1 × 105, what is its value in standard form?
A scientist records a measurement as 2.34 × 10-5 meters. What is this value in decimal form?
(1) Which of the following numbers is written in expanded form? (1) 5,000 + 400 + 30 + 2 (2) 5432 (3) 5.432 × 103 (4) 5,432th
Which of the following is the correct expanded form of 0.305? (1) 3 × 0.1 + 5 × 0.01 (2) 3 × 0.1 + 0 × 0.01 + 5 × 0.001 (3) 3 × 0.1 + 0 × 0.01 + 5 × 0.001 (4) 3 × 0.1 + 0 × 0.01 + 5 × 0.001
Which of the following is the expanded form of 4,205? (1) 4,000 + 200 + 5 (2) 4,000 + 20 + 5 (3) 4,000 + 200 + 50 (4) 4,000 + 2,000 + 5
Which of the following numbers has a 4 in the hundred-thousands place? (1) 4,123,567 (2) 1,423,567 (3) 1,432,567 (4) 1,234,567
Fill in the blank: 2,000,000 + 300,000 + 40,000 + 5,000 + 600 + 70 + 8 = ____________
Fill in the blank: The digit in the hundredths place in 0.0789 is ____________.
Fill in the blank: The number 1,000,000,000 written in words is ______________________.
Fill in the blank: The number 6,204,000 written in words is ______________________.
True or False: In the number 0.00045, the digit 4 is in the ten-thousandths place.
True or False: In the number 0.032, the digit 2 is in the thousandths place.
True or False: The digit 1 in 1,234,567 is in the millions place.
True or False: The number 0.0001 is equal to 1 × 10-4.