Make up a Math trick, I am not good with making up things in math. pls helppppppppppppppppppppppp and no googling!!!!
We are not online 24/7. However, here is something from the Internet:
If you need to be able to decide quickly if 408 slices of pie can be evenly split by 12 people, here are some useful shortcuts. These rules works for all numbers without fractions and decimals.
Divisible by 2 if the number's last digit is divisible by 2 (e.g. 298).
Divisible by 3 if the sum of the digits of the number are divisible by 3 (501 is because 5 + 0 + 1 equals 6, which is divisible by 3).
Divisible by 4 if the last two digits of the number are divisible by 4 (2,340 because 40 is a multiple of 4).
Divisible by 5 if the last digit is 0 or 5 (1,505).
Divisible by 6 if the rules of divisibility for 2 and 3 work for that number (408).
Divisible by 9 if the sum of digits of the number are divisible by 9 (6,390 because 6 + 3 + 9 + 0 equals 18, which is divisible by 9).
Divisible by 12 if the rules of divisibility for 3 and 4 work for that number (e.g. 408).
I know i just need this done TODAY, but thanks!
Sure, I can help you come up with a math trick! Let's try a simple one.
Step 1: Think of a number.
Step 2: Multiply the number by 2.
Step 3: Add 6 to the result.
Step 4: Divide the result by 2.
Step 5: Subtract the number you initially thought of.
Now, here's how the trick works:
No matter what number you initially thought of, the final result will always be 3. Let's go through an example to see why that works.
Let's say you thought of the number 4.
Step 1: You thought of 4.
Step 2: 4 multiplied by 2 equals 8.
Step 3: 8 plus 6 equals 14.
Step 4: 14 divided by 2 equals 7.
Step 5: 7 minus the number you initially thought of, which is 4, equals 3.
You can try this trick with any number, and the final result will always be 3. It works because adding 6 and then subtracting the original number cancels out each other, resulting in 3.
Now, you can impress your friends or family with this simple math trick!