Multiplication Table of 13
Repeated addition by 13’s means the multiplication table of 13.
(i) When 7 heaps of 13 footballs each.
By repeated addition we can show 13 + 13 + 13 + 13 + 13 + 13 + 13 = 91
Then, thirteen 7 times or 7 thirteen’s
7 × 13 = 91
Therefore, there are 91 footballs.
(ii) When 12 rows of 13 soldiers each.
By repeated addition we can show 13 + 13 + 13 + 13 + 13 + 13 + 13 + 13 + 13 + 13 + 13 + 13 = 156
Then, thirteen 12 times or 12 thirteen’s
12 × 13 = 156
Therefore, there are 156 soldiers.
We will learn how to use the number line for counting the multiplication table of 13.
(i) Start at 0. Hop 13, four times. Stop at 52.
4 thirteen’s are 52 4 × 13 = 52
(ii) Start at 0. Hop 13, five times.
Stop at ____. Thus, it will be 65
5 thirteen’s are 65 5 × 13 = 65
(iii) Start at 0. Hop 13, nine times.
Stop at ____. Thus, it will be 117
9 thirteen’s are 117 9 × 13 = 117
How to read and write the table of 13?
The above chart will help us to read and write the 13 times table.
|
Read 1 thirteen is 13
2 thirteen’s are 26 3 thirteen’s are 39 4 thirteen’s are 52 5 thirteen’s are 65 6 thirteen’s are 78 7 thirteen’s are 91 8 thirteen’s are 104 9 thirteen’s are 117 10 thirteen’s are 130 11 thirteen’s are 143 12 thirteen’s are 156 |
Write 1 × 13 = 13
2 × 13 = 26 3 × 13 = 39 4 × 13 = 52 5 × 13 = 65 6 × 13 = 78 7 × 13 = 91 8 × 13 = 104 9 × 13 = 117 10 × 13 = 130 11 × 13 = 143 12 × 13 = 156 |
Now we will learn how to do forward counting and backward counting by 13’s.
Forward counting by 13’s: 0, 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156, 169, 182, 195, 208, 221, 234, 247, 260, 273, 286, 299, 312, 325, ……
Backward counting by 13’s: ……, 325, 312, 299, 286, 273, 260, 247, 234, 221, 208, 195, 182, 169, 156, 143, 130, 117, 104, 91, 78, 65, 52, 39, 26, 13, 0
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