Repeated addition by 23’s means the multiplication table of 23.
(i) When 2 rows of twenty-three chairs each.
By repeated addition we can show 23 + 23 = 46
Then, twenty-three 2 times or 2 twenty-three’s
2 × 23 = 46
Therefore, there are 46 chairs.
(ii) When 7 groups having 23 fishes each.
By repeated addition we can show 23 + 23 + 23 + 23 + 23 + 23 + 23 = 161
Then, twenty-three 7 times or 7 twenty-three’s
7 × 23 = 161
Therefore, there are 161 fishes.
We will learn how to use the number line for counting the multiplication table of 23.
(i) Start at 0. Hop 23, five times. Stop at 115.
5 twenty-three’s are 115 5 × 23 = 115
(ii) Start at 0. Hop 23, eight times.
Stop at ____. Thus, it will be 184
8 twenty-three’s are 184 8 × 23 = 184
(iii) Start at 0. Hop 23, eleven times.
Stop at ____. Thus, it will be 253
11 twenty-three’s are 253 11 × 23 = 253
How to read and write the table of 23?
The above chart will help us to read and write the 23 times table.
Read 1 twenty-three is 23
2 twenty- three’s are 46 3 twenty- three’s are 69 4 twenty- three’s are 92 5 twenty- three’s are 115 6 twenty- three’s are 138 7 twenty- three’s are 161 8 twenty- three’s are 184 9 twenty- three’s are 207 10 twenty- three’s are 230 11 twenty- three’s are 253 12 twenty- three’s are 276 |
Write 1 × 23 = 23 2 × 23 = 46
3 × 23 = 69 4 × 23 = 92 5 × 23 = 115 6 × 23 = 138 7 × 23 = 161 8 × 23 = 184 9 × 23 = 207 10 × 23 = 230 11 × 23 = 253 12 × 23 = 276 |
Now we will learn how to do forward counting and backward counting by 23’s.
Forward counting by 23’s: 0, 23, 46, 69, 92, 115, 138, 161, 184, 207, 230, 253, 276, 299, 322, 245, 368, 391, 414, 437, 460, 483, 506, 529, 552, 575, ……
Backward counting by 23’s: ……, 575, 552, 529, 506, 483, 460, 437, 414, 391, 368, 245, 322, 299, 276, 253, 230, 207, 184, 161, 138, 115, 92, 69, 46, 23, 0
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