Arithmetic Grade Three
Lesson One hundred three: Multiples
Which of the following are multiples of 3?
12, 33, 20, 21, 26, 16, 15, 22.
Can you easily tell which numbers in this list are multiples three and
which aren't. If you have to you can write out a list of count-bys for 3 or
divide each number on the list by 3 to see if there is a remainder or not.
In this list, 12, 33, 21, and 15 ARE MULTIPLES OF 3. The numbers which are
not multiples of 3 in this list are 20, 26, 16, and 22.
Which of the following are multiples of 6?
21, 30, 25, 24, 18, 19, 35, 36, 40, 42.
You should be able to easily sort out the numbers which are multiples of 6
from the ones that aren't. In this list 30, 24, 18, 36, and 42 ARE MULTIPLES
OF 6. The numbers which are not multiples of 6 in this list are 21, 25, 19,
35, and 40.
Here are some numbers sorted by whether or not they are multiples of 7.
| 21 | YES |
NO | 16 | |
| 35 | YES |
| 42 | YES |
NO | 30 | |
| 49 | YES |
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