Scroll:Patterns and sequences >> Geometric growth patterns >> saq (3494)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

 Type the missing number in this sequence:

3,9,27,81, ___,7292187


Answer:_______________




2)  

 Type the missing number in this sequence:

1,    2,    4,    8,


Answer:_______________




3)  

 Type the missing number in this sequence:

1,    3,    9, ___,    81


Answer:_______________




4)  

 Type the missing number in this sequence:

 1  2  4    16  32  


Answer:_______________




5)  

 Type the missing number in this sequence:

1,   , 4, 8, 16


Answer:_______________




6)  

 Type the missing number in this sequence:

2,6, ___,54,162,4861458


Answer:_______________




7)  

 Type the missing number in this sequence:

2,6,18,54, ___,4861458


Answer:_______________




8)  

 Type the missing number in this sequence:

1,    2,    4,    8,


Answer:_______________




9)  

 Type the missing number in this sequence:

1,    3,    9, ___,    81


Answer:_______________




10)  

 Type the missing number in this sequence:

 2  4  8    32  64  


Answer:_______________




 

1)  

 Type the missing number in this sequence:

3,9,27,81, Answer: 243,7292187


SOLUTION 1 :

First, look for a pattern. Notice how each number is 3 times the previous number: 

3,    9, 27    81, ____ ,    729,  2187



Multiply 81 by 3 to find the missing number:

81 × 3 = 243



To make the pattern complete, the number 243 must go in the blank space. 



2)  

 Type the missing number in this sequence:

1,    2,    4,    8, Answer: 16



3)  

 Type the missing number in this sequence:

1,    3,    9, Answer: 27,    81


SOLUTION 1 :

First, look for a pattern. Notice how each number is 3 times the previous number: 

1,    3,    9,    __,    81



Multiply 9 by 3 to find the missing number:

9 × 3 = 27



To make the pattern complete, the number 27 must go in the blank space. 



4)  

 Type the missing number in this sequence:

 1  2  4   Answer: 8  16  32  


SOLUTION 1 :

First, look for a pattern. Notice how each number is 2 times the previous number: 

1,   2,   4,    __,    16,    32



Multiply 4 by 2 to find the missing number:

4 × 2 = 8



To make the pattern complete, the number 8 must go in the blank space. 



5)  

 Type the missing number in this sequence:

1, Answer: 2   , 4, 8, 16


SOLUTION 1 :

First, look for a pattern. Notice how each number is 2 times the previous number: 

1,    __,    4,    8,    16



Multiply 1 by 2 to find the missing number:

1 × 2 = 2



To make the pattern complete, the number 2 must go in the blank space.



6)  

 Type the missing number in this sequence:

2,6, Answer: 18,54,162,4861458


SOLUTION 1 :

First, look for a pattern. Notice how each number is 3 times the previous number: 

2,    6,    __,    54,    162,    486,  1458



Multiply 2 by 3 to find the missing number:

2 × 3 = 18



To make the pattern complete, the number 18 must go in the blank space. 



7)  

 Type the missing number in this sequence:

2,6,18,54, Answer: 162,4861458


SOLUTION 1 :

First, look for a pattern. Notice how each number is 3 times the previous number: 

2,    6, 18    54, ____ ,    486,  1458



Multiply 54 by 3 to find the missing number:

54 × 3 = 162



To make the pattern complete, the number 162 must go in the blank space. 



8)  

 Type the missing number in this sequence:

1,    2,    4,    8, Answer: 16



9)  

 Type the missing number in this sequence:

1,    3,    9, Answer: 27,    81


SOLUTION 1 :

First, look for a pattern. Notice how each number is 3 times the previous number: 

1,    3,    9,    __,    81



Multiply 9 by 3 to find the missing number:

9 × 3 = 27



To make the pattern complete, the number 27 must go in the blank space. 



10)  

 Type the missing number in this sequence:

 2  4  8   Answer: 16  32  64  


SOLUTION 1 :

First, look for a pattern. Notice how each number is 2 times the previous number: 

2,   4,   8,    __,    32,    64



Multiply 8 by 2 to find the missing number:

8 × 2 = 16



To make the pattern complete, the number 16 must go in the blank space.