# Skip counting by 8s

The concept of counting by 8s is used in the table of 8. You can count by fours by adding 8 to the previous number.
If you start with 0 then the numbers counting by eight are 0,8,16,24,32,... and so on.
If you start with 1 then the numbers counting by eight are 1,9,17,25,33,... and so on
Note: If the starting number is odd then the numbers formed by counting by 8's are odd. If the starting number is even then the numbers formed by counting by 8's even.

## Skip counting by 8s Example : Skip counting by 8's
8 : 8 + 8 = 16 ; 16 + 8 = 24 ; 24 + 8 =32 ; 32 + 8 = 40 ; 40 + 8 = 48 and so on.
So if the 1st number is 8 then after counting by 8's we will get 8, 16, 24, 32, 40, 48,...
To find the next number by counting by 8's , add 8 to the given number.
Example 1 : Find the next number of 12 after counting it by 8's.
Solution : Add 8 to 12.
12 + 8 = 20.
So next number will be 20.

Example 2 : Find the next number of 78 after counting it by 8's.
Solution : Add 8 to 78.
78 + 8 = 86.
So next number will be 86.
Example 3 : Find the 5 missing numbers using skip counting by 8's after 30.
Solution : As we have to find the missing number by 8's so add 8 to each number from 30.
1st missing number = 30 + 8 = 38

2nd missing number = 38 + 8 = 46

3rd missing number = 46 + 8 = 54

4th missing number = 54 + 8= 62

5th missing number = 62 + 8 = 70

So the numbers are 38, 46,54,62, 70.

## Practice

Q.1 Find the missing numbers.
1) 10,___,___,___,___,___,58

2) 21,___,___,___,___,___,69

3) 46,___,___,___,___,___,___

4) 84,___, 100 ,___,___,___,___

5) ,___,16,___,___,___,___

Q.2 From the above table, write all the numbers starting from 20 counting by 8.