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GMAT Math Review Practice Exercises : Arithmetic - Powers & Roots of Numbers


Answer the following questions based on Powers & Roots of Numbers

Formats Info Page Quiz Review
Multiple choice

Your Performance  

1.

Which is the smallest of the following numbers?

  15 √45

  21 √20

  11 √80

  7 √180

  8 √125

  Half-n-half Clue
 

2.

3√81 =

  3 3√9

  3 √3

  3 3√3

  2 3√9

  3

  Half-n-half Clue
 

3.

√147 =

  49

  49 √3

  7 √3

  73

  21

  Half-n-half Clue
 

4.

√3 (3 √12 − 5 √3) =

  √3

  18 − 5 √3

  6 √3 − 15

  33

  3

  Half-n-half Clue
 

5.

(2 √162) / (3 √96) =

  ½ √3

  ¼ √2

  ½ √2

  ¼ √3

  ¾ √2

  Half-n-half Clue
 

6.

33 × 52 / 62 =

  18.25

  18.75

  6.25

  6.75

  6.5

  Half-n-half Clue
 

7.

√112 − √63 + √28 =

  9 √7

  3 √7

  √77

  9 √3

  7 √3

  Half-n-half Clue
 


 
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