What number is necessary to finish the pattern below? It is a simple mathematical sample that have the right to be fixed with an easy operations. Below we describe them step by step.

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66 73 13 21 52 __ 10 20

Method 1

Step 1

To discover which number should finish the pattern, we need to observe the numbers and find the pattern that was complied with in the series. V the help of that pattern we can uncover the lacking number.

We room going to offer an X to the missing number:

66 73 13 21 52 X 10 20

Step 2

By observing the numbers we discover that the sample is:

66 + 7 = 73

13 + 8 = 21

52 + ? = X

10 + 10 = 20

According to the pattern, the number to be added to 52 to obtain the missing number X must be 9.

52 + 9 = X

X = 61

The number 61 is necessary to finish the pattern.

Method 2

To uncover which number should finish the pattern, we need to observe the numbers and find the pattern the was followed in the series. Through the assist of that pattern us can discover the lacking number.

Step 1

The absent number is X

66 73 13 21 52 X 10 20

Step 2

By observing the numbers we find that the sample is:

73 – 66 = 7

21 – 13 = 8

X – 52 = ?


20 – 10 = 10

According to the pattern, the number the we acquired whpositiveeast.org we subtract 52 from X, must be 9

X – 52 = 9

X = 9 + 52

X = 61

The number 61 is required to complete the pattern.

More examples

Q. 1 What number is needed to finish the pattern below?

106 97 89 82 76 __ 67 64

Step 1

To discover which number should complete the pattern, we need to observe the numbers and also find the pattern the was adhered to in the series. V the aid of that pattern we can find the lacking number.

The lacking number is X

106 97 89 82 76 X 67 64

Step 2

By observing the numbers we find that the sample is:

106 – 97 = 9

97 – 89 = 8

89 – 82 = 7

82 – 76 = 6

76 – X = ?

X – 67 = ??

67 – 64 = 3

According to the pattern, the number that we acquire whpositiveeast.org we subtract the absent number X indigenous 76, must be 5. Whpositiveeast.org we subtract 67 from the absent number X, have to be 4.

76 – X = 5 and also X – 67 = 4

X = 76 – 5 X = 67 + 4

X = 71 X = 71

The absent number is 71.

The number 71 is necessary to finish the pattern.

Q.2 What number is necessary to complete the pattern below?

6 2 8 12 4 16 27 9 36 33 11 __

Step 1

To find which number should finish the pattern, we need to observe the numbers and find the pattern the was adhered to in the series. Through the aid of the pattern we can discover the missing number.

The lacking number is X:

6 2 8 12 4 16 27 9 36 33 11 X

Step 2

By observing the numbers we uncover that the pattern is:

6 + 2 = 8

12 + 4 = 16

27 + 9 = 36

33 + 11 = X

According to the pattern, 11 must be added to 33 to acquire the missing number X.

33 + 11 = X

X = 44

The missing number is 44

The number 44 is needed to complete the pattern.

Second method

To uncover which number should complete the pattern, we need to observe the numbers and also find the pattern the was complied with in the series. With the assist of the pattern we can uncover the absent number.

Step 1

The absent number is X:

6 2 8 12 4 16 27 9 36 33 11 X

Step 2

By observing the numbers we uncover that the sample is:

8 – 6 = 4


16 – 12 = 4

36 -27 = 9

X – 33 = 11

According to the pattern, 33 must be come subtracted from absent number to acquire 11.

X – 33 = 11

X = 11 + 33

X = 44

The absent number is 44

The number 44 is required to complete the pattern.

Q.3 What number is needed to complete the pattern below?

2 6 12 20 30 42 __

Step 1

To discover which number should finish the pattern, we have to observe the numbers and also find the pattern that was adhered to in the series. Through the help of that pattern we can discover the absent number.

The missing number is X:

2 6 12 20 30 42 X

Step 2

By observing the number we find that the pattern is:

6 – 2 = 4

12 – 6 = 6

20 – 12 = 8

30 -20 = 10

42 – 30 = 12

X – 42 = ?

According to the pattern, the result should be 14, whpositiveeast.org 42 is subtracted native the missing number X.

X – 42 = 14

X = 42 + 14

X = 56

The number 56 is necessary to complete the pattern.

Q.4 What number is necessary to complete the sample below?

6 5 7 4 8 3 9 2 __

Step 1

To discover which number should finish the pattern, we need to observe the numbers and also find the pattern the was adhered to in the series. Through the assist of the pattern we can uncover the missing number.

See more: What Does Comment Allez Vous Mean, What Does 'Comment Allez

The lacking number is X:

6 5 7 4 8 3 9 2 X

Step 2

By observing the numbers we find that the sample is differpositiveeast.orgt. It starts with decrease thpositiveeast.org increase thpositiveeast.org to decrease thpositiveeast.org again increase and also so on, however not with the very same number. The numbers subtracted and also thpositiveeast.org added are in the series.