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Math Tips Tuesday

Dividing by 25
1250 / 25

Step 1: Divide the number by 100:
1200 / 100 = 12.5

Step 2: Multiply the number from Step 1 by 4
12.5 x 4 = 50

Math Tips Tuesday

Finding 2% of a number
2% of 550

Step 1: Divide the number for 100:
550 / 100 = 5.5

Step 2: Multiply the number from Step 1 by 2:
5.5 x 2 = 11

Math Tips Tuesday

Percentage
Finding a percentage of a number can be somewhat tricky, but thinking about it in the right terms makes it much easier to understand. For instance, to find out what 5% of 235 is, follow this method:

Step 1: Move the decimal point over by one place, 235 becomes 23.5.
Step 2: Divide 23.5 by the number 2, the answer is 11.75. That is also the answer to the original equation.

Physics Tips Thursday

Memorize basic equations. In physics, the relationships between the many different forces acting in the universe are described with equations. Some of these equations are very simple, while some are enormously complex. Having the simplest equations memorized and knowing how to use them is critical when tackling both simple and complex problems. Even difficult and confusing problems are often solved by using several simple equations or modifying these simple equations so that they fit new situations. These basic equations are the easiest part of physics to learn, and if you know them well, the odds are that you will at least know some part of every complex problem you face. Just a few of the most important equations are:

Velocity = Change in position/Change in time (v=x/t)
Acceleration = Change in velocity/Change in time (a=v/t)
Current velocity = Initial velocity + (Acceleration × time) (v=vi+a×t)
Force = Mass × acceleration (F=m×a)
Kinetic energy = (1/2)Mass × velocity^2 (K=(1/2)m×v^2)
Work = Displacement × force (W=d×F)
Power = Change in work/Change in time (P=W/t)
Momentum = Mass × velocity (p=m×v)

Math Tips Tuesday

Multiplying 5 times any number
When multiplying the number 5 by an even number, there is a quick way to find the answer.

For example, 5 x 22 =

Step 1: Take the number being multiplied by 5 and cut it in half, this makes the number 22 become the number 11.
Step 2: Add a zero to the number to find the answer. In this case, the answer is 110.
5 x 22 = 110

When multiplying an odd number times 5, the formula is a bit different.

For instance, consider 5 x 25.

Step 1: Subtract one from the number being multiplied by 5, in this instance the number 25 becomes the number 24.
Step 2: Now halve the number 24, which makes it the number 12. Make 5 the last digit. The number produced is 125, which is the answer.
5 x 25 = 125

Cultivating Good Study Habits

In Math and Physics, the key to success is practice, practice, practice. Carve out a time to dedicate to study (two hours of study for every one hour of class time).

When I was a student in university, one of my professors asked us to complete every odd question at the end of each section in the textbook for homework but he wouldn't be grading the questions. I did what he asked and brought all the questions to him at the next class period. I was the only one that completed this assignment and the only one that received an A in the class. This was a model for me and my future courses. I needed to ensure that practicing the problems was a priority for me.

To learn more about the tutoring services available in physics and math email [email protected] or checkout the website at http://www.supremelearning.org

Physics Tips Thursday

Memorize basic constants. In physics, certain forces, like the accelerating force of gravity on earth, are assigned mathematical constants.

This is simply a fancy way of saying that these forces are usually represented as the same number regardless of where or how they're used. It's a smart idea to memorize the most common constants (and their units) — often, they won't be provided on tests. Below are a few of the most frequently-used constants in physics:

Gravity (on earth): 9.81 meters/second^2
Speed of light: 3 × 10^8 meters/second
Molar gas constant: 8.32 Joules/(mole × Kelvin)
Avogadro's number: 6.02 × 10^23 per mole
Planck's Constant: 6.63 × 10^-34 Joules × seconds

Math Tips Tuesday

Adding large numbers

Adding large numbers just in your head can be difficult. This method shows how to simplify this process by making all the numbers a multiple of 10. Here is an example:

644 + 238

While these numbers are hard to contend with, rounding them up will make them more manageable. So, 644 becomes 650 and 238 becomes 240.

Now, add 650 and 240 together. The total is 890. To find the answer to the original equation, it must be determined how much we added to the numbers to round them up.

650 – 644 = 6 and 240 – 238 = 2

Now, add 6 and 2 together for a total of 8

To find the answer to the original equation, 8 must be subtracted from the 890.

890 – 8 = 882

So the answer to 644 +238 is 882

The Benefits of Physics and Math Tutoring

Physics and Math tutoring helps improve your child's knowledge 🤔 in those subjects. Your child's studying will be more effective with a tutor's help since they will receive easy methods to effectively solve problems 🥳 and endless tips and tricks.

Tutors also help to target learning challenges or topics that your child struggles with and can pinpoint topics that can be skipped 💪.

To learn more about the tutoring services that we offer, email us at [email protected] or check out our website at
http://www.supremelearning.org

Physics Tips Thursday

Get Comfortable With Maths
You’ll be doing plenty of calculations and will also draw on your skills in algebra. The positive news is that any practise you do will make you more fluent in other situations involving maths.

Remember that every math function comes down to basic arithmetic. If you can add and subtract, you can so algebra. Even multiplication and division are only different ways to add and subtract.

Math Tips Tuesday

Tough multiplication - Even Numbers
20 x 120

Step 1: Divide the first number in half
20 / 2 = 10

Step 2: Double the second number
120 x 2 = 240

Step 3: Multiply the two numbers
10 x 240 = 2400