Scientific Notation
Math ⇒ Number and Operations
Scientific Notation starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Scientific Notation.
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See sample questions for grade 9
A bacterium is 2.5 × 10-6 meters long. Write this length in standard form.
A distance is measured as 1.5 × 108 meters. What is this distance in standard form?
A scientist measures the mass of a particle as 2.3 × 10-15 grams. What is this value in standard form?
Add (3.2 × 105) + (2.8 × 105) and write the answer in scientific notation.
Convert 5,600,000 to scientific notation.
A bacterium is 2.5 × 10-6 meters long. Write this length in standard form.
A distance is measured as 1.5 × 108 meters. What is this distance in standard form?
A scientist measures the mass of a particle as 2.3 × 10-15 grams. What is this value in standard form?
Which of the following is NOT a correct scientific notation?
(1) 1.2 × 103
(2) 0.12 × 104
(3) 9.99 × 10-2
(4) 5.0 × 100
Which of the following is the correct scientific notation for 0.00000000000034?
(1) 3.4 × 10-13
(2) 3.4 × 10-12
(3) 3.4 × 10-10
(4) 3.4 × 10-15
Which of the following is the correct scientific notation for 0.00000000012?
(1) 1.2 × 10-10
(2) 1.2 × 10-11
(3) 1.2 × 10-12
(4) 1.2 × 10-9
Which of the following is the correct scientific notation for 0.0000009?
(1) 9 × 10-7
(2) 9 × 10-6
(3) 9 × 10-8
(4) 9 × 10-9
Fill in the blank: 2.5 × 104 = ________
Fill in the blank: 6.02 × 1023 is called ________'s number.
Fill in the blank: The scientific notation for 0.00012 is ________.
Fill in the blank: The scientific notation for 8,900,000 is ________.
True or False: 1.0 × 100 is equal to 1.
True or False: 2.0 × 10-3 is greater than 2.0 × 10-4.
True or False: 4.0 × 102 is the same as 400.
True or False: 7.5 × 102 is less than 7.5 × 103.
