Multiply And Divide In Scientific Notation Quiz

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#1 of 7: Mild

Multiply and divide in scientific notation

At its farthest point, Mercury is `4.3times 10^7` miles away from the Sun. If Pluto's farthest point from the Sun is approximately `1.07times 10^2` times farther than Mercury's, what is Pluto's farthest distance from the Sun? <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

#2 of 7: Mild

Multiply and divide in scientific notation

Puerto Rico has an area of ` 3.425times 10^3` `text{mi}^2`. If the area of the entire United States is approximately `1.06times 10^3` times larger than Puerto Rico, what is the area of the United States`?` <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

#3 of 7: Mild

Multiply and divide in scientific notation

Sherill, New York has the smallest population in the state with `3.07times 10^3` residents. The population of New York City is `2.81times 10^3` times larger than Sherill.What is the population of New York City? <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

#4 of 7: Medium

Multiply and divide in scientific notation

Erica's hometown has a population of `4.56times 10^4`. She recently got a job offer in a large city with a population `15` times larger than her hometown. What is the approximate population of the large city? <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

#5 of 7: Medium

Multiply and divide in scientific notation

There are `8.64times 10^4` seconds in `1` day. How many seconds are there in `30` days? <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

#6 of 7: Spicy

Multiply and divide in scientific notation

The smallest cell in the world has a diameter of `2times 10^-6` meters. If the largest cell in the world is `75text{,}000` times the diameter of smallest, what is the diameter of the largest cell? <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

#7 of 7: Spicy

Multiply and divide in scientific notation

The weight of a grain of sand is `1.45times 10^-4`kg. If there are `2text{,}000text{,}000` grains of sand in `1` cup, how much will a cup of sand weigh? <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

Any quantity with the same base and power can be easily multiplied and divided. All the numbers in a scientific notation form have the base of 10. Hence, we can easily multiply and divide them. In order to multiply two numbers in a scientific notation form, multiply the coefficients and add their exponents. For division, subtract the exponents and multiply the coefficients.

Share this amazing ‘Multiply and divide in scientific notation (word problems) Quiz’ with your students. This would help them to easily divide and multiply the scientific notation.

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Grade 8

Scientific Notation

8.EE.A.4