The concept on skip counting by 12’s or twelves 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 twelves up to tens times.
Skip counting by 12’s up to 10 times –
12, 1 time 
24, 2 time 
36, 3 time 
48, 4 time 
60, 5 time 
72, 6 time 
84, 7 time 
96, 8 time 
108, 9 time 
120, 10 time 
I. Now look at the chart above where every twelfth number is in dark yellow color and fill in the blanks below:
(i) 12 × 3 = _____ (iv) 12 × 5 = _____
(vii) 12 × 7 = _____ (x) 12 × 2 = _____ (xiii) 12 × 6 = _____ 
(ii) 12 × 1 = _____ (v) 12 × 9 = _____
(viii) 12 × 4 = _____ (xi) 12 × 7 = _____ (xiv) 12 × 8 = _____ 
(iii) 12 × 10 = _____ (vi) 12 × 0 = _____
(ix) 12 × 12 = _____ (xii) 12 × 9 = _____ (xv) 12 × 11 = _____ 
II. Complete the skip counting series by 12s:
(i) 24, ____, ____, 60, ____, ____, ____, 108.
(ii) 0, ____, ____, 36, ____, ____, 72, 84.
(iii) 72, ____, ____, ____, ____, 132, 144.
(iv) ____, ____, ____, ____, 96, ____, ____, 132.
(v) ____, ____, ____, 48, 60, ____, ____.
(vi) 72, ____, 96, ____, ____, 132, 144, ____.
(vii) 36, ____, ____, ____, 84, ____, ____, 120.
(viii) ____, 24, ____, ____, ____, 72, 84, ____.
(ix) ____, ____, 36, 48, ____, ____, ____, 96.
(x) ____, ____, 72, 84, ____, ____, ____, 132.
Answers:
I. (i) 36 (iv) 60
(vii) 84 (x) 24 (xiii) 72 
(ii) 12 (v) 108
(viii) 48 (xi) 84 (xiv) 96 
(iii) 120 (vi) 0
(ix) 144 (xii) 108 (xv) 132 
II. (i) 24, 36, 48, 60, 72, 84, 96, 108.
(ii) 0, 12, 24, 36, 48, 60, 72, 84.
(iii) 72, 84, 96, 108, 120, 132, 144.
(iv) 48, 60, 72, 84, 96, 108, 120, 132.
(v) 12, 24, 36, 48, 60, 72, 84.
(vi) 72, 84, 96, 108, 120, 132, 144, 156.
(vii) 36, 48, 60, 72, 84, 96, 108, 120.
(viii) 12, 24, 36, 48, 60, 72, 84, 96.
(ix) 12, 24, 36, 48, 60, 72, 84, 96.
(x) 48, 60, 72, 84, 96, 108, 120, 132.
`2nd Grade Math Practice
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