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## How do you manually calculate square roots?

Take the number you wish to find the square root of, and group the digits in pairs starting from the right end. For example, if you want to calculate the square root of 8254129, write it as 8 25 41 29. Then, put a bar over it as when doing long division.

## How do you find a square root without a calculator?

Finding square roots of of numbers that aren’t perfect squares without a calculator

- Estimate – first, get as close as you can by finding two perfect square roots your number is between.
- Divide – divide your number by one of those square roots.
- Average – take the average of the result of step 2 and the root.

## What is the shortcut key for square root?

The Alt code for the symbol for the Square root is Alt +251 or 221A, then Alt+X. Follow these three simple steps to attach the symbol using the Alt code: – Position the pointer in the place where you want the square root symbol inserted. – Press and hold down the Alt key and type 251 from the numeric keypad.

## What is the square of 1 to 30?

Square, Cube, Square Root and Cubic Root for Numbers Ranging 0 – 100

Number x | Square x^{2} |
Square Root x^{1}^{/}^{2} |
---|---|---|

28 | 784 | 5.292 |

29 | 841 | 5.385 |

30 | 900 | 5.477 |

31 | 961 | 5.568 |

## What are the roots of 4?

Square Root From 1 to 50

Number | Square Root Value |
---|---|

3 | 1.732 |

4 | 2 |

5 | 2.236 |

6 | 2.449 |

## What is a square root of 21?

List of Perfect Squares

NUMBER | SQUARE | SQUARE ROOT |
---|---|---|

18 | 324 | 4.243 |

19 | 361 | 4.359 |

20 | 400 | 4.472 |

21 | 441 | 4.583 |

## How do you find the square root of 2?

The square root of 2 is the number which when multiplied with itself gives the result as 2. It is generally represented as √ 2 or 2 ^{½}. The numerical value of square root 2 up to 50 decimal places is as follows: √ 2 = 1.41421356237309504880168872420969807856967187537694…