Divisibility Rules
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Divisible | Divides with NO REMAINDER
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2 | If the number is even.
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3 | If the sum of the digits is divisible by 3. (Can be done multiple times to the number.)
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4 | If the last two digits is divisible by 4. (There are other rules that may work faster.)
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5 | If the number ends in 5 or 0.
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6 | If the number is divisible by 2 and 3.
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8 | If the last three digits is divisible by 8.
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9 | If the sum of the digits is divisible by 9. (Can be done multiple times to the number.)
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10 | If the number ends in 0
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12 | If the number is divisible by 3 and 4.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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