2.7.5 Operations with Scientific Notation

2.7.5 Operations with Scientific Notation

by Sara Fisher

Multiple Choice

Which of the following are irrational? 

• 1/2

• pi

• 0.1212121212...

• -12.4

​Blinking

​The average person blinks 6.25 x 10^6 times a year.

​How many times will the average person blink in 20 years? (multiply)

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​How can you compute the number of times the average person blinks in a MINUTE? (Hint: 1 yr = 525,600 mins)

​Rate of Production

​A hardware factory produces 3.6 x 10^5 bolts in 2,400 minutes. What is the factory's rate of production in bolts per minute?

Multiple Choice

A company spends a total of $64,500,000 on salaries for its workers. If the company has 1.5 x 10^3 workers, what is the average salary per worker? (divide)

• 4,300,000

• 4,300

• 43,000,000

• 43,000

Multiple Choice

Stalactites can grow at the rate of about 0.005 inches per year. At this rate, what is the length of a stalactite that grows for 7.5 x 10^4 years? (Divide)

• 15,000,000

• 1,500,000

• 150,000

• 15,000

Multiple Choice

The volume of the planet Venus is about 928,000,000,000 km^3. The volume of the planet Mercury is about 6.08 x 10^10 km^3. What is the COMBINED volume of Mercury and Venus? 

• 7,008,000,000,000

• 988,800,000,000

• 1,536,000,000,000

• 928,608,000,000

​Exit Ticket

​•Remember to complete 15 minutes of i-Ready

•For every lesson you pass with a 70% you will get a class dojo point.