# Skip Counting by 13's

The concept on skip counting by 13’s or thirteens 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 thirteens up to tens times.

Skip counting by 13’s up to 10 times –

 13, 1time 26, 2time 39, 3time 52, 4time 65, 5time 78, 6time 91, 7time 104, 8time 117, 9time 130, 10time

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

 (i) 13 × 4 = _____ (iv) 13 × 1 = _____ (vii) 13 × 6 = _____ (x) 13 × 3 = _____ (xiii) 13 × 7 = _____ (ii) 13 × 0 = _____ (v) 13 × 10 = _____ (viii) 13 × 5 = _____ (xi) 13 × 9 = _____ (xiv) 13 × 11 = _____ (iii) 13 × 8 = _____ (vi) 13 × 12 = _____ (ix) 13 × 2 = _____ (xii) 13 × 9 = _____ (xv) 13 × 6 = _____

II. Complete the skip counting series by 13s:

(i) 26, ____, ____, ____, 78, ____, ____, 117.

(ii) 0, ____, ____, 39, 52, ____, ____, ____.

(iii) 52, ____, ____, ____, ____, 117, 130.

(iv) ____, ____, ____, ____, 91, 104.

(v) ____, ____, ____, 91, 104, ____, ____.

(vi) 78, ____, 104, ____, ____, 143, 156.

(vii) 13, ____, ____, ____, 65, ____, ____, 104.

(viii) ____, 26, ____, ____, ____, 78, 91, ____.

(ix) ____, ____, ____, ____, ____, 143, 156.

(x) ____, ____,  ____, ____, 104, 117, ____, ____.

 I. (i) 52 (iv) 13 (vii) 78 (x) 39 (xiii) 91 (ii) 0 (v) 130 (viii) 65 (xi) 117 (xiv) 143 (iii) 104 (vi) 156 (ix) 26 (xii) 117 (xv) 78

II. (i) 26, 39, 52, 65, 78, 91, 104, 117.

(ii) 0, 13, 26, 39, 52, 65, 78, 91.

(iii) 52, 65, 78, 91, 14, 117, 130.

(iv) 39, 52, 65, 78, 91, 104.

(v) 52, 65, 78, 91, 104, 117, 130.

(vi) 78, 91, 104, 117, 130, 143, 156.

(vii) 13, 26, 39, 52, 65, 78, 91, 104.

(viii) 13, 26, 39, 52, 65, 78, 91, 104.

(ix) 78, 91, 104, 117, 130, 143, 156.

(x) 52, 65, 78, 91, 104, 117, 130, 143.

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