Anonymous
Anonymous asked in Science & MathematicsMathematics · 1 decade ago

How do I explain square route?

My bro needs to know what square route is but he wasnt in class when his teacher explained it. How do I explain it. (neither of our parents are good at math)

24 Answers

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  • Anonymous
    1 decade ago
    Best Answer

    a square root of a number is a number that when multiplied by itself equals a root.

    ex:

    144...the square root is 12.

    4...the square root is 2.

  • Anonymous
    1 decade ago

    The best way to explain square root is to start with square numbers. If your brother already knows about the magic of square numbers, then jump ahead to step 2.

    1) Explain what a square number is, and how to square a number. You could say something like "To square a number you multiply it by itself. For example 2 squared is 2x2. 3 squared is 3x3. 7 squared is 7x7".

    2) Square root is a tad trickier. Start with a perfect square (Some are : 1, 4, 9, 16, 25, 36, 49, 64, 81, and 100). Explain that the square root of a number is the number that you multiply by itself to get the perfect square (that's a bit wordy and confusing though). For example,the square root of 4 is 2, because 2x2 is 4. The square root of 9 is 3 because 3x3 is 9. When you square a number 'x' and get 'y' then 'x' is the square root of 'y'.

    Keep using examples, and try to reword what you say. Examples give your brain something to remember, and latch on to. If your brother doesn't understand what you're saying, changing your wording could help. It may just be that hearing what you say differently is what he needs.

    Good luck!

  • Anonymous
    1 decade ago

    I guess your bother knows how to multiply one number with itself, e.g.

    2*2 = 4

    10*10 = 100

    1.5*1.5=2.25

    a square root is just the opposite of this, e.g.

    suppose I've got 9, what number times itself is going to equal 9?

    it's not hard to try a few numbers and see that the answer is 3, so "3 is the the square root of 9".

    It gets a bit harder if you're asked "what is the square root of 5", because there is no whole number that multiplied by itself gives 5.

    This is where decimal numbers are useful, e.g.

    2.24*2.24 is almost 5

    2.236*2.236 is even closer

    by the way you can type "sqrt(5)" (or some other square root) in to google to get any square root you like

  • Anonymous
    1 decade ago

    Any number times it self is one way. 2 times 2 = 4. The square route would be 2. Another would be 4 times 4 = 16. 4 would be the square root of 16.

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  • bulan
    Lv 4
    1 decade ago

    A number that when multiplied by itself equals a given number.

    Symbol of square root is √ .

    √x means the positive number whose square is x.

    √4 = 2 or √9 = 3 or √16 = 4 etc...

  • 1 decade ago

    If your brother is visual, this might help:

    Draw a square (hence the term "square").

    Divide it in half both ways (so you have 4 little squares).

    The number on the side (2) is the square root of the number of little squares (4).

    Divide it in 3 parts both ways (so you have 9 little squares).

    The number on the side (3) is the square root of the number of little squares (9).

    You can keep going as big as you want to, but that should be enough to explain the concept.

  • 1 decade ago

    a square root is simple it is just a divisor of a quantity that when squared gives the quantity. For example, the square roots of 25 are 5 and 5 because 5 × 5 = 25 also 5 and -5 because a negative times a positive is still a positive.

  • 1 decade ago

    Well, a number multiplied by itself. Examples:

    1. the square root of 81 is 9 because 9x9=81

    2. the square root of 25 is 5 because 5x5=25

    Hope this helps!

  • te144
    Lv 7
    1 decade ago

    You mean square root. It's like rhe number 4 has a sq. root of 2. And 9 has a sq. root of 3. The square root is the multiplier of itself to produce a product.

  • 1 decade ago

    im sooooo gewd at this...the square root is taking the number that is giving that needs the square root. and the square root can be both nagative and posotive. to find the square root you have to take the number and divide by two. then you will get a number with a decimal or a plain number for example: the square root of 9 is 3 because 3x3=9 the square root is two numbers multiplied together to get another number equaly...ummmm does that help at all?

    Source(s): In learing right now very simpe hope this helps
  • alpha
    Lv 7
    1 decade ago

    [6]

    First of all,please explain to him what is a square,A number multiplied by itself yields a square.

    For example

    4 is the square of 2

    9 is the square of 3

    16 is the square of 4 etc etc

    Square root is the opposite of square.so we say that 2 is the square root of 4,3 is the square root of 9,10 is the square root of 100

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