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- aliya whyte
- 2005-09-23 04:54:34
dollysaunder wrote:
Sophie wrote:
Help me please! i really need help! I alwats forget what square route is! and next year i'm going into Year11so i think that I really should know! please help me with a good strategy! If you don't have a strategy please tell me what it is! i just got retold last week! i have a horrible memory sometimes!
i neeed help with double digit and all the rest digit number. love aliya.
- John E. Franklin
- 2005-08-30 02:01:06
To help jog your memory, visualize a tree with roots under the ground.
The roots are below the tree, so remember that the answer to a square root problem is usually smaller (roots below).
The square root of any number above one is going to be smaller than what you started with.
However, if you become a math wiz someday, you will learn that the square root of numbers between zero and one become bigger!
Good Luck!
- ganesh
- 2005-08-08 15:32:08
Here are the squares and square roots of all squares up to 31.
1² = 1
2² = 4
3² = 9
4² = 16
5² = 25
6² = 36
7² = 49
8² = 64
9² = 81
10² = 100
11² = 121
12² = 144
13² = 169
14² = 256
15² = 225
16² = 256
17² = 289
18² = 324
19² = 361
20² = 400
21² = 441
22² = 484
23² = 529
24² = 576
25² = 625
26² = 676
27² = 729
28² = 784
29² = 841
30² = 900
31² = 961
Remember,
(1) The last digit of a perfect square is always 0, 1, 5, or 6.
(2) Finding square roots is easier by prime factorisation.
eg. 784 = 2 x 2 x 2 x 7 x 7 x 7
Therefore, the square root of 784 is 2 x 2 x 7, i.e. 28
- wcy
- 2005-08-08 15:13:57
here are some tips to remember square root of large numbers..
you can break up the square root into two or more parts, eg
√36=√4 x √9 =2x3=6
that way, you need to remember less values
but this can only work for some numbers
- MathsIsFun
- 2005-08-07 20:55:15
Are YOU asking, dollysaunder?
Anyway, square root is just the opposite of square.
To square a number is to multiply it by itself. The square of 5 is 5x5=25, so the square root of 25 is 5.
5 Squared ==> 25
5 <== Square Root 25
So, for example: what is the square root of 36 ???
*thinks* 6 x 6 = 36. (6 squared is 36)
Answer: the square root of 36 is 6
And if that fails then think of a square:
RRRR
RRRR
RRRR
RRRR
That square has 16 Rs in it, and it is 4 Rs wide by 4 Rs high.
So, 4 squared is 16.
And the square root of 16 is 4.
What is the square root of 81 ???
- dollysaunder
- 2005-08-07 19:25:19
Sophie wrote:
Help me please! i really need help! I alwats forget what square route is! and next year i'm going into Year 7 so i think that I really should know! please help me with a good strategy! If you don't have a strategy please tell me what it is! i just got retold last week! i have a horrible memory sometimes!