Skip Counting by 9's

The concept on skip counting by 9’s or nines is an essential skill to learn when making the jump from counting to basic addition.

The sequence chart will help us to write the number to complete the series which involves skip counting by nines up to 11 times.

Skip Counting By 9

Skip counting by 9’s up to 11 times –

9,

1

time

18,

2

time

27,

3

time

36,

4

time

45,

5

time

54,

6

time

63,

7

time

72,

8

time

81,

9

time

90,

10

time

99,

11

time

I. Now look at the chart above where every ninth number is in dark yellow color and fill in the blanks below:

(i) 9 × 3 = _____

(iv) 9 × 7 = _____

(vii) 9 × 5 = _____

(x) 9 × 8 = _____

(xiii) 9 × 9 = _____

(ii) 9 × 6 = _____

(v) 9 × 0 = _____

(viii) 9 × 4 = _____

(xi) 9 × 10 = _____

(xiv) 9 × 2 = _____

(iii) 9 × 1 = _____

(vi) 9 × 11 = _____

(ix) 9 × 9 = _____

(xii) 9 × 7 = _____

(xv) 9 × 12 = _____

II. Complete the skip counting series by 9s:

(i) 27, ____, 45, ____, ____, ____, ____, 90.

(ii) 9, 18, ____, ____, ____, ____, 63, ____.

(iii) 36, ____, ____, ____, ____, 81, ____, ____.

(iv) ____, ____, ____, ____, 54, ____, ____, 81. 

(v) ____, ____, ____, ____, 72, ____, 90, ____.

(vi) 0, 9, ____, ____, ____, 45, ____, ____. 

(vii) 45, ____, ____, ____, ____, 90, 99, ____.

(viii) ____, 18, ____, ____, ____, ____, 63, ____.

(ix) ____, ____, ____, 36, ____, ____, ____, 72.

(x) ____, ____, ____, ____, 90, 99, ____, 117.


Answers:


I. (i) 27

(iv) 63

(vii) 45

(x) 72

(xiii) 81

(ii) 54

(v) 0

(viii) 36

(xi) 90

(xiv) 18

(iii) 9

(vi) 99

(ix) 81

(xii) 63

(xv) 108

II. (i) 27, 36, 45, 54, 63, 72, 81, 90.

(ii) 9, 18, 27, 36, 45, 54, 63, 72.

(iii) 36, 45, 54, 63, 72, 81, 90, 99.

(iv) 18, 27, 36, 45, 54, 63, 72, 81. 

(v) 36, 45, 54, 63, 72, 81, 90, 99.

(vi) 0, 9, 18, 27, 36, 45, 54, 63. 

(vii) 45, 54, 63, 72, 81, 90, 99, 108.






2nd Grade Math Practice

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