🔢Divisibility by 7 can be determined using a simple calculation.
✅If the result of the calculation is divisible by 7, the original number is divisible by 7 as well.
💡The trick is to split the number into two parts and perform a specific calculation.
🧠Divisibility by 7 is useful in various situations, such as splitting bills among a group of people.
🔢Other divisibility rules, such as those for numbers like 2, 3, 4, 5, 6, 8, 9, and 11, can also be used to determine divisibility.
Why is divisibility by 7 important?
—Divisibility by 7 can be useful in situations like splitting bills among a group of people.
How do you test a number for divisibility by 7?
—Split the number into two parts, perform a calculation, and check if the result is divisible by 7.
Are there other divisibility rules?
—Yes, there are divisibility rules for numbers like 2, 3, 4, 5, 6, 8, 9, and 11.
Can the divisibility trick be applied to larger numbers?
—Yes, the trick can be applied to larger numbers by repeating the calculation multiple times.
What if the result of the calculation is not divisible by 7?
—If the result is not divisible by 7, then the original number is not divisible by 7 either.
00:00In this video, we learn a simple trick to test if a number is divisible by 7.
02:39The trick involves splitting the number into two parts and performing a specific calculation.
05:16Divisibility by 7 can be useful in various situations, such as splitting bills among a group of people.
06:11There are other divisibility rules for numbers like 2, 3, 4, 5, 6, 8, 9, and 11.
07:04We recap the divisibility tests for numbers like 1, 2, 3, 4, 5, 6, 8, 9, and 11.
