If your child has trouble understanding percentages, you may help by working through these steps with them.
In fourth grade, most students are introduced to the basics of percentage calculation (10%, 50%, 75%, and 100%).
Students in grades 5 and 6 keep improving their abilities.
Additionally, the ability to calculate percentages is a “real-world” mathematical talent.
Take advantage of the “clearance” section the next time you’re shopping at your favorite store.
30% off the previously indicated price,” the placard reads.
You’ve found a shirt you’d want to add to your wardrobe. You can only spare ten dollars. There was a final price of $16.
It causes you some anxiety, and you start to doubt that you’ll be able to purchase the garment.
Using % terminology is a standard problem.
How do you divide 40% by 8? You suddenly find yourself lamenting your lackluster math skills.
Tip #1
The meaning becomes apparent when considering the two halves of the word “percent,” per and cent.
To put it another way, a percentage is a number expressed as a fraction of 100.
When dividing by 100, 30% is 30, and 15% is 15.
In other words, if the shirt was initially marked at $100, the sale price would be $70.
In order to remember that ($100-30=$70), picture the 100 cents in a dollar. There is one penny in 1% of a dollar.
Tip #2
Master the art of utilizing fractions to estimate percentages.
In some cases, you can get away with just an approximation, and in others, it will assist you make sure your answer is reasonable.
There are two primary abilities necessary for this method:
Analysis of Wholes and Their Components
100% Equals 1 whole
75%= ¾
50%= ½
33.33 % = 1/3
25%= ¼
10% = 1/10
This time, let’s use the sale rack as an illustration.
The number 30% represents the range of 25%-33.33%.
There is a quarter to a third off on the garment.
A quarter of sixteen is four, and a third of sixteen is slightly over five.
Therefore, 30% falls in the $4–$5 range. 16$-5$ =$11.
You can’t buy the shirt because your budget is merely $10.
Tip #3
Often, precise percentage calculations are required.
Don’t forget that “divided by 100” refers to 30%.
So, 30%=30/100=.30 =.3
Multiply 16 by.3 in your head.
Since 153 is 45, 163 is 48, and 16.3 is 4.8, so 30% of 16 is 4.8.
Tip #4
Mathnasium style breakdown of the word “percent” We usually interpret “per” to imply “for each” (as in “miles per gallon” or “dollars per hour”), but at Mathnasium, “per cent” means “for each 100.”
Here’s how it breaks down: 16 for the first 100, 16 for the second 100, 16 for the third 100, 16 for the fourth 100, and then 12 for the 75.
Adding them up yields a grand total of 76. Cool!
For simple percentage questions like 7% of 300, 9% of 450, 8 1/2% of 200, 14% of 425, etc., the learner can quickly compute the solution in their head using this method.
You can utilize the other hints for more unforgiving math.