sweets and the weighing machine says things like 7.55 and we have to then add that to the number written down on the page, I will have to do the stock check someday and dont want to mess up, how do I teach ,yself this part of mathematics?
2007-06-02 09:24:48 · 11 answers · asked by BRAD Thomas 1 in Science & Mathematics ➔ Mathematics
On your home page type decimals in your web toolbar and click search. There are several sites
www.mathleague.com/help/decwholeexp/decwholeexp.htm
On your home page type Fractions in your web toolbar and click search. There are several sites
www.mathleague.com/help/fractions/fractions.htm
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2007-06-02 09:50:17 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
The first digit to the right of the point is out of 10, the second is 100, and so on by adding a zero. In this paticular problem, 7.55 would be 7 55/100. To simplify this fraction, you have to divide the two numbers by the same amount. In this case, they are both divisible by 5, so it would equal 11/20.
2007-06-09 02:44:50 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Use the 'pie' method.
A pie is cut into 100 pieces. And those pieces can be cut into 100 slivers too.
So 7.55 pieces of the pie will be 7 full slices, and 55 slivers.
All slivers add up to 100, and so do full slices.
Therefore 7.55 + 7.55 = 15.10
Hope this helps.
2007-06-02 09:34:28 · answer #3 · answered by wonkyfella 5 · 0⤊ 0⤋
You may relate your conversion needs to a particular type of numbers alone (1/9 to 9/9 or 1/99 to 99/99 or 1/999 to 999/999 or any higher order series that is needed to you!)
Above series numbers can be easily remembered!
For example 1/9....9/9 can be remembered by...
1/9= 0.111111111...
2/9= 0.222222222...
..........................
8/9=0.888888888...
9/9=0.999999999... (A numerator is recurring value)
Further, 1/99....99/99 can be remembered by...
1/99= .010101010101010101....
2/99= .020202020202020202....
3/99= .030303030303030303....
................................
97/99= .979797979797979797...
98/99= .989898989898989898...
99/99= .999999999999999999 (A numerator digit as a '2-digits group' as shown recur endlessly!
Together with these also remember that...
1/2= 0.5
1/4= 0.25
1/8= 0.125
1/16= 0.0625
1/32= 0.03125
1/64= 0. 015625 and so on...
Just use your memory!
7.55 nearest is (7and 5/9) and so on...
Regards!
2007-06-07 21:55:52 · answer #4 · answered by kkr 3 · 1⤊ 0⤋
after the point its unit tens hundreds thousands the same as before the point so you have 7 and 55/100 ths its easier to add up in decimal 7.55 + 7.55 is 15.1
2007-06-02 09:32:42 · answer #5 · answered by Anonymous · 0⤊ 0⤋
It seems like you are asking how to add two decimal numbers. If you have to add 7.55 to say 3.2 write the numbers one above the other lining up the decimal points, then add. The sum you should get is 10.75
2007-06-02 09:36:56 · answer #6 · answered by cicero 2 · 0⤊ 0⤋
Never underestimate the power of a good calculator.
2007-06-10 06:31:26 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Buy a CD! It really helps (start out with the kids version)
2007-06-07 09:23:49 · answer #8 · answered by Vicky 2 · 0⤊ 1⤋
go to bbc bitesize and do the gcse fractions section
2007-06-02 20:31:56 · answer #9 · answered by motown 5 · 1⤊ 0⤋
Your question is not clear. Be more specific in drafting your question so as to help you.
2007-06-09 05:50:59 · answer #10 · answered by Brave 3 · 0⤊ 0⤋