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Tuesday 31 October 2017

BÀI 19 : FIND PERCENTAGES OF NUMBERS- TÌM TỶ LỆ % CỦA SỐ



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What is 10% of a million dollars.
exactamente 10% is $100,000 .
go gogo … 
To find 10% of a million dollars, we simply move the decimal point one place to the left.
If  we had 10 stacks of cash on a table and each stack was $100,000 ,we would have a million dollars.
 one stack equals one tenth  which is $100,000.
10 / 10 would be all 10 stacks equals $1,000,000.
wrote…… chut cha chut cha-ching oh yeah.
Let’s try another problem.
 What  is 60% of 80 dollars.
Well, what's 50% of 80 dollars.
 That 's right $40.
Now  what's 10% of 80.
 Remember, To find 10% , we can just move the decimals one place to the left.
So 80 becomes 8.
40 plus 8 equals 48 and that's our answer.

How  about 65% of 80.
We  know that 50% of 80 is 40.
 and we know that 10% of 80 is 8.
5% is half of 10% .
So  half of 8 is 4 .
And  if we add it all up ,we have 52 .
65% of 80 is  52 .

Let 's try a tricky one .
What  is 15% of 70 .
To  solve this,we need to find 10% and 5% to give us  15%.
So  what's 10% of 70.
That 's right.
We  move the decimal one to the left to give us seven .
And   five percent is half of 10%.
So  what's half of seven .
That 's right.
Three  point five .
Seven  plus three point five is ten point five .
So  ten point five is our answer.

 ro room yes hi yeah .

Let 's do one more.
What  is one percent of five million dollars .
ruah thousand dollars.
 So  100 percent of five million dollars is five million dollars.
 To  find 10 percent we just move the decimal one space to the left .
To  find one percent ,we would move the decimal two spaces to the left.
 So $50,000 is one percent of five million dollars .
Roku Mulla Mulla Mulla hey yeah hey yeah .
Good job.
 Hopefully  these tricks make it easier keep practicing and you'll get
better and fast.
 bang bang Koston




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