MATHEMATICS WHY THE FEAR

WHAT ABOUT IT? TELL IT AND IT IS DONE

 

Many people have a lot of apathy/fear for mathematics but why? With

little tutorial, all is simple

WHAT TO DO?

Tips

- Create just some time daily to look at maths topics.

- Look at examples given by the authors.

- Attempt one or two questions from experience/tests given.

YOU CAN’T GET IT



- Don’t get tired. Rework the problem. Do it and if not solved, then

leave. Do other things and let the memory remain.

- Think about it.

I have done it before, it worked for me.

DO YOU KNOW YOU CAN GET SQUARE ROOT OF ANY PERFECT

SQUARE (WITH 3 OR MORE DIGITS) WITHOUT USING A

CALCULATOR OR FOUR-FIGURE TABLE. IT IS SIMPLY

POSSIBLE. BUT BEFORE GIVING TIPS ON HOW TO HANDLE IT,

LET US KNOW WHAT A PERFECT SQUARE OR SQUARE ROOT

IS.

- Simply put, a square root can be seen as any number that when multiplied once by itself will give another figure. This figure is called a square.

For example;

+7 or – 7 is a square root of 49. This is because 7 x 7 or -7 x -7 is 49.

The square root of any square will always yield 2 results (positive and negative). The symbol for square root is √. Therefore, √10 is read as square root of 10.

Not all squares are perfect. A perfect square is one when its square root is calculated will be a figure without any remainder.

Examples of perfect squares are 0, 1, 4, 9, 16, 25, 36, 49, 64, 81.

Others include 100, 144, 169, 196, 225 etc. One thing common to all these figures is the fact that the square root of each these figures will yield 0, ±1, ±2, ±3, ±4, ±6, ±7, ±8, ±9, ±10, ±11, ±12, ±13,

±14 and ±15. Note that ± is pronounced plus or minus. For example, ±2 is  pronounced plus or minus 2 i.e. Plus 2 or minus 2.

How can I find square root of a perfect square with 3 or digits without using a calculator or Four figure table? First thing is to know is to be conversant with basic square roots of figures from 1 - 99.

To be continued.