Mathematics · Quantitative Aptitude

Number Operations and Properties

896 Questions

Improve your quantitative aptitude with these number operations and properties questions. The topics range from basic subtraction and division to highest common factor and roman numerals. Regular practice of these fundamentals builds speed for exams.

Basic arithmetic operationsHCF and number propertiesRoman numeral calculationsNumber series evaluation

Number Operations and Properties Questions

Multiple choice maths multiplication and division of integers division of integers and its properties multiplying and dividing integers multiplication of integers

$(+132) $ $\div$ $ (-12)$

  1. $+ 101$
  2. $-101$
  3. $+ 11$
  4. $-11$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

$(132)\div (-12)=\frac{132}{-12}$
                             $=\frac{12\times11}{-12}$
                             $=-1\times11$
                             $=-11$
Option D is correct.

Multiple choice maths multiplication and division of integers division of integers and its properties multiplying and dividing integers multiplication of integers

(-12) $\times$ (-3) $\times$ (+4) $\times$ (-6) =

  1. -144

  2. -908

  3. +864

  4. -864
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are $3$ negative signs . So, the resultant of $3$ multiplications would be negative.


$\therefore (-12) \times (-3) \times(+4) \times (-6) = 36\times 4\times (-6)$
$\Rightarrow 144\times (-6)=-864$

Multiple choice maths multiplication and division of integers division of integers and its properties multiplying and dividing integers multiplication of integers

$5. { 63 } \ \times 11$ is equal to

  1. $62$
  2. $83.\overline { 93 } $
  3. $83.9\overline { 3 } $
  4. $83.93$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

$5.\overline { 63 } $
$=5.636363...$
Let $x=5.6363$  (i)
$\therefore 100x=563.6363$  (ii)
Subtracting (i) from (ii) we get,
$=>99x=558$
$=>x=\dfrac{558}{99}$
Now,$5.\overline { 63 }\times 11$
$=>\frac{558}{99}\times 11$
$=>62$

Multiple choice maths multiplication and division of integers division of integers and its properties multiplying and dividing integers multiplication of integers

Observe the given multiplies of 37
$\displaystyle 37\times 3$ = 111
$\displaystyle 37\times 6$ = 222
$\displaystyle 37\times 9$ = 333
$\displaystyle 37\times 12$ = 444
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Find the product of $\displaystyle 37\times 27$ ?

  1. 999

  2. Greatest 3 digit number

  3. Either A or B

  4. Smallest 3-digit number
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

$\displaystyle 37\times 3=37\times \left ( 3\times 1 \right )=111$
$\displaystyle 37\times 6=37\times \left ( 3\times 2\right )=222$
$\displaystyle 37\times 9=37\times \left ( 3\times 3\right )=333$
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$\displaystyle 37\times 27=37\times \left ( 3\times 9 \right )=999$