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Knowing our Numbers Test - 10

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Knowing our Numbers Test - 10
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  • Question 1
    1 / -0
    $$9849475825$$ can be written with commas in International system as
    Solution
    The given number is $$9849475825$$
    In international numbering system,
    The 1st period consists of - ones, tens and hundred.
    The 2nd period consists of - thousand, $$10 $$ thousand and $$100 $$ thousand.
    The 3rd period consists of - million, $$10$$ million and $$100$$ million.
    The 4th period consists of - billion, $$10$$ billion and $$100$$ billion.
     
    $$\therefore $$ $$9849475825$$
     is written with commas as (International System)$$ = 9,849,475,825$$

    Hence, Option $$B$$ is correct.
  • Question 2
    1 / -0
    Round off to nearest lakhs: The given number is $$38,65,62,048$$
    Solution
    To round of the given no in nearest lakh we need to see the value at ten thousand place which is $$6$$ it is more than $$5$$. 
    So we round off lakhs digit to $$5+1=6$$
    So we will round off. $$38,65,62,048$$ will become $$38,66,00,000$$

  • Question 3
    1 / -0
    Numeral for five hundred three million eight thousand seven hundred two is
    Solution
    Numeral for five hundred three million eight thousand seven hundred two, using the international place value system, is $$503,008,702$$

    $$\therefore\ $$ Option C is correct.
  • Question 4
    1 / -0
    Number name for  $$123,080,603$$ is
    Solution
    $$123,080,603$$  - We can write as One hundred twenty three million eighty thousand six hundred three
  • Question 5
    1 / -0
    $$648340021$$ is written with commas as (International System)
    Solution
    In international system of numeration,
    The 1st period consists of - ones, tens and hundred.
    The 2nd period consists of - thousand, 10 thousand and 100 thousands.
    The 3rd period consists of - million, 10 million and 100 million.
    The 4th period consists of - billion, 10 billion and 100 billion.
    $$\therefore $$648340021 is written with commas as (International System)= 648,340,021
    Option A is correct.
  • Question 6
    1 / -0
    Round off the given number to the nearest thousands
    $$76,823$$.
    Solution
    Given, $$76,823$$ 
    We see hundred's place,  the hundred place is $$8$$ and it is greater than $$5$$ so we will round up it means $$76,823$$ will become $$77,000$$
  • Question 7
    1 / -0
    An $$8$$ digit number starts with ________ place in the International system.
    Solution
    An $$8$$ digit number starts with ten millions place in the international system.
    Ex: $$10,000,000$$
  • Question 8
    1 / -0
    Numeral for sixteen crore four lakh fifty thousand three hundred ten is
    Solution
    Numerical value will be
    16x1,00,00,000+04x1,00,000+50x1,000+310=160450310
    So correct answer will be option B
  • Question 9
    1 / -0
    $$1$$ billion $$=$$ _______ crores.
    Solution
    $$ 10 $$ crores $$ = 10,00,00,000 $$

    $$ 1 $$ billion $$ = 1,000,000,000 $$

    So, $$ 1 $$ billion  $$ = 100 \times 10,00,00,000 = 100 $$ crore
  • Question 10
    1 / -0
    Compare $$67389145\,  \Box \,673891450$$ using $$>, <, =$$.
    Solution
    We can clearly see that 673891450 is greater than 67389145 as the former has 9 digits while the latter has just 8 digits.

    So correct answer will be option A
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