According to studies, only 5% of people sleep in this position. Starfish is when you lie on your back and sleep with your arms lifted up near your head. Lying on your back with your arms tight to your body is actually a good sleeping position, as it helps maintain your spine in a straight line. Studies have shown that people who sleep like this may be quieter and more relaxed. It’s when you sleep with your arms down and very close to your body. This is a kind of a weird sleeping position, but very common. So seize the moment and spread the marvels of nine to your friends, because a stitch in time saves nine.
We “dress to the nines” when we want to look good.And with so many reasons that nine is an incredible number, that’s no surprise. Is 92,990,007 a multiple of nine? Better believe it!
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Toss a nine into any multiple of nine, in any part of the number, and the resulting number will still be a multiple of nine.įeel free to dump multiple nines into the mix to get a more mixed-up multiple.Īnd don’t forget the zeros. Putting the digit nine into any number does not change the sum of the digits of that number. OR for a reverse take, find a random multiple of nine like this:Ģ.Then subtract that number from the product.ģ.Place the number you subtracted in the leftmost place, and the result of the subtraction to its left, filling the places to the right of X.Īnd, don’t forget that if 864 is a multiple of nine, so are 846, 468, etc. For a number, again, in the ten-thousands: Step 1 now needs to include a three digit number, since no two digit multiple of nine is greater than 100.Īlternately, you can keep x as two digits, but find a number in the thousands by lengthening the number in Step 1. For example, to find a multiple of nine in the ten thousands, To find numbers in the thousands, add digits to Step 1 so that Step 2 does not yield a negative answer. And put the number x to the result in Step 2.ħ20 is a multiple of nine in the 700s! The property carries on for double digit hundreds. It’s easy to mentally compute multiples of nine in a given hundred.įind a multiple of nine in the 700s (x=7).ģ.
This follows from the property that the sum of the digits of any product of nine is nine.ĥ67, 576, 657, 675, 756, and 765 are all divisible by nine.įeel free to toss in as many zeros as you like. The digits within any number that is divisible by nine can be rearranged in any orientation, and the resulting number will still be divisible by nine. You can’t go any higher without tacking on an extra digit. Nine is the highest single digit Arabic numeral. September, the ninth month of the year, is the only month in the English language whose number of letters in the name corresponds to the number of the month.