Multiply And Divide In Scientific Notation (Word Problems) Quiz

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#1 of 7: Mild

Multiply and divide in scientific notation (word problems)

A new baby has about `3times 10^10` cells in its body. A adult has about `1.5times 10^3` times as many cells in their body as a newborn. About how many cells does an adult have in their body? <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 (word problems)

A pizza crust is `5times 10^-1` cm thick. The earth's crust is `1.4times 10^7` times thicker. How many centimeters thick is the Earth's crust? <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: Medium

Multiply and divide in scientific notation (word problems)

During its first year of operation, a manufacturing company produced `8.4times 10^8` erasers. During the second year, the company produced `3.5` times the number of erasers that it produced during the first year. How many erasers did the company produce in its second year of operation? <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 (word problems)

The mass of the moon is approximately `7.36times 10^22` kilograms. Compared to the moon, the mass of the Sun is `2.72times 10^7` times larger. What is the mass of 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>

#5 of 7: Medium

Multiply and divide in scientific notation (word problems)

A baby blue whale weighs `5.0times 10^3` pounds. An adult blue whale weighs `66` times as much. How many pounds does an adult blue whale weigh? <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 (word problems)

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 (word problems)

There are `5.9times 10^20` copper atoms in a penny. The bank has `25text{,}000` pennies in the vault. How many copper atoms are in all of the pennies at the bank? <highlight data-color="#666" data-style="italic">Write your answer in scientific notation. Round the coefficient to the nearest thousandths, if necessary.</highlight>

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In word problems with scientific notation, we multiply two numbers' coefficients and add their exponents. In case of word problems with scientific notation division, divide two numbers by their coefficients and subtract their exponents. Multiplying and Dividing Scientific Notation Word Problems quiz are important for students to understand the concept of scientific notations.

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Grade 8

Scientific Notation

8.EE.A.4