6 Answers

0.16.. only for you jenn...

12 years ago. Rating: 3
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Decimal multiplication is always a cumbersome job.

But it is very easy to deal with such kind of decimal format [specially zero's format with monomial one]

Proceed as follows:

1. First multiply the numbers only

2. Notice the decimal point

3. Then, move number of decimal point to the result in "1" backward and you will get your required result

If we see the above problem,

First multiply 8 with 2, then result would be 16

Notice the decimal point, then move 2 steps backward,

then result would be 0.16.

 Now you can recall all those information yourself and teach your daughter efficiently.

12 years ago. Rating: 3
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Too long ago for me, Jenn. I'm old enough I don't have to know this kind of stuff unless it's a personal emergency....

12 years ago. Rating: 2
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HI    EVERY NUMBER HAS A DECIMAL POINT AS ITS CALLED

EXAMPLE       1  OR 2 OR 3         SHOULD BE WRITTEN AS   1.0 OR 2.0  OR 3.0  45.0 ETC

THIS IS  NUMBERS TO ONE DECIMAL POINT WHEN THEY ARE WRITTEN AS    1.00 OR 2.00 OR 3.00   OR 45.00   THIS IS CALLED TWO DECIMAL POINTS AND MAKES THE NUMBER MORE ACCURATE SO THE MORE DECIMAL POINTS THE MORE ACCURATE THE NUMBER

DECIMAL POINT MEANS 10 PLACES     SO IF YOU    TAKE NUMBER 1.0  AND YOU MOVE THE DECIMAL POINT TO THE RIGHT    IT BECOMES   10.0     OR  NUMBER 5.0 AND DO THE SAME

THAT BECOMES   50.0      IF YOU DO THE SAME AGAIN      10.0  BECOMES   100.0    AND  50.0  BECOMES  500.0  AND SO ON

WHEN YOU GET TO NUMBERS LESS THAN  1  ONE    THE REVERSE HAPPENS

IF YOU   WRITE THE NUMBER 1.0     AS 0.1     THIS MEANS   IT IS ONE TENTH  OR 1/10

0.2   = 2/10     0.3=3/10  ETC          

IF YOU MOVE THE DECIMAL POINT TO THE LEFT  ONE MORE PLACE   LIKE THIS  0.001  OR 0.002   THIS MEANS     1/100   OR  2/100   

THEREFORE YOUR QUESTION      8X0.02    =    8 X 2/100      =   16/100  =  0.16

FROM ABOVE 0.10   =1/100       THEREFORE    16/100      =0.10X16   =0.16

12 years ago. Rating: 2
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I used to be good at this stuff...

12 years ago. Rating: 1
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Jenn if I see you saying you are dumb one more time I am going to put you over my knee and spank you. Don`t get excited I am only joking.

Zenius is ,merely multiply the numbers as you would and other multiplcation then place a decimal point distanced from the right hand side of the answer the number of spaces that the largest decimal point in your original sum. 

That is 6.09x5.078= 30.925 ie 3 decimal places back

12 years ago. Rating: 1
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