Tag: power of 10

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Questions Related to power of 10

Multiple choice maths square and square root scientific notation use of exponents power of 10

Which of the following number is in the scientific notation?

  1. $\displaystyle 1.26\times 10^{-5}$ m
  2. $\displaystyle 15.75\times 10^{3}$ km
  3. $\displaystyle 0.18\times 10^{-7}$ km
  4. $\displaystyle 0.0013\times 10^{-8}$ km
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Since $\displaystyle 1 \leq 1.26<10$  

The number shuold be in between 1 and 10

Multiple choice maths square and square root scientific notation use of exponents power of 10

The population of India is close to $1.08 \times  10^{9}$. Which of the following represents this population written in standard notation?

  1. 1,080,000,000

  2. 1,080,000

  3. 180,000,000

  4. 108,000
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

We get the answer by multiplying and dividing the number by ${ 10 }^{ 9}=1000000000$

Multiple choice maths square and square root scientific notation use of exponents power of 10

The airports in the United States serve more than 635,000,000 people each year. Which of the following is the same number written in scientific notation?

  1. $635 \times 10^6$
  2. $6.35 \times 10^8$
  3. $6.35 \times 10^{-8}$
  4. $6.35 \times 10^9$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

We get the answer by multiplying and dividing the number by 100000000 = ${ 10 }^{ 8 }$