TEAS Core: Practice Questions
Master the conversion method with 7 practice questions and instant feedback
Quick Reference
The conversion method for scientific notation
Large Numbers → Scientific Notation
- Move decimal left until you have a number between 1 and 10
- Count the places moved = positive exponent
123,000 → 1.23 × 10⁵
Small Numbers → Scientific Notation
- Move decimal right until you have a number between 1 and 10
- Count the places moved = negative exponent
0.00045 → 4.5 × 10⁻⁴
Question 1
Express 5,800,000 in scientific notation.
Question 2
Express 0.000072 in scientific notation.
Question 3
Convert 3.4 × 10⁴ to a standard number.
Question 4
Convert 6.1 × 10⁻³ to a standard number.
Question 5
A patient is prescribed 250 milligrams of a medication. How would this be written in grams using scientific notation? (1 gram = 1000 milligrams)
Question 6
The human body contains approximately 37,200,000,000,000 cells. Express this in scientific notation.
Question 7
A bacterial culture contains 1.5 × 10⁸ bacteria. If the culture triples in size, how many bacteria are there, expressed in scientific notation?