Distribution Trick by Number 5 - Dear Calculate this time we will share interesting tips for friends at home can do the division of a number with the number five quickly. Create a buddy who has good division can be a reminder to let more good division. Can my friend help answer the problem of beautiful girl like picture below?
Look at your pal, there is a finger of 5 pieces. The basis of our country there are also 5, Pancasila. If division by number 10 is obviously very easy, then what about division by number 5? Actually it's just as easy if we know the trick or the right way. Not everyone knows that the division by number 5 can be solved by 2 very simple steps:
Step 1: multiply the 2 numbers
Step 2: slide one decimal to the left
That meant shifting one decimal to the left like for example 115 we slide left one to 11.5. For example, for example 174,5 we slide one decimal to the left to 17,45.
To test whether the above is true we try with the easiest example. Figure 10: 5. First we multiply 10 by 2 to generate 20. Then we slide left one decimal to 2.0 or 2. The answer is correct. Now we try a more difficult example, eg 190 divided by 5. For some 10: 5 people it is rather difficult without using the help of a calculator, but if following the trick with two steps above will be easy. Step 1, 190 x 2 = 380. Step 2, 380 we slide left one decimal to 38.8 or 38. So 10: 5 = 38.
Let's try a more complicated example. What is the result of division of 3456 with 5. Easy, we multiply 3456 with the number 2, 3456 x 2 = 6912. Then we slide 1 decimal to the left to 691.2. Is that really the answer? Please check my self using a calculator or Ms. Excel at home.
Let's try a rather extreme example. What is the result 123456789: 5. If my friend do it using conventional way (progapit) will be very long. And the exact answer can be searched with 2 quick dividing steps. Step 1, 123456789 x 2 = 246913578. The second step we move to the left of one decimal ketermu 24691357,8. Please match with the calculator at home.
Simply put, if you see again when a number divided by 5 is equal to multiplied by a fraction 1/5. This fraction 1/5 number if multiplied by two into 2/10 which means multiplied by 2 and divided by 10. It is evident that a number is divided by 5 as multiplied by two and divided by ten. Divided 10 just like shifting 1 decimal to the left.
Is the fast division of number 5 above always right? You will never find the answer if you do not try it. So, please try at home. So many math tricks from rumushitung.com another chance we will share the math tricks or other arithmetic tricks.