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## How do you calculate the square root of a number?

Divide the number by your guess. Now you have two numbers that multiply to get your original number. Take the average of these two numbers. This becomes your second guess for the square root.

## What is the shortcut to find square root?

Shortcut to find the square root of any 6 digit number

- We find that nearest square to the first group (1267)is 1225 and√1225=35.
- ten’s place digit of original number>Multiplication result.
- So we need to select the greater number (6) as the unit’s place digit of the square root.
- Unit’s place digit =6.
- Ans:√126736=356.

## Is 4 a perfect square?

For instance, the product of a number 2 by itself is 4. In this case, 4 is termed as a perfect square. A square of a number is denoted as n × n. Example 1.

Integer | Perfect square |
---|---|

2 x 2 | 4 |

3 x 3 | 9 |

4 x 4 | 16 |

5 x 5 | 25 |

## What is the square root 0f?

The square root of a number is a number that, when multiplied by itself, equals the desired value. So, for example, the square root of 49 is 7 (7×7=49). The process of multiplying a number times itself is called squaring. List of Perfect Squares.

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

9 | 81 | 3.000 |

10 | 100 | 3.162 |

11 | 121 | 3.317 |

12 | 144 | 3.464 |

## Which is the square root of 144?

The value of the square root of 144 is equal to 12. In radical form, it is denoted as √ 144 = 12.

## Why is 9 The square root of 81?

Explanation: 81 = 9 ⋅ 9 then the square root of √ 81 = 9. Because the double multiplication for the same sign is always positive, the square root is also valid with the other sign 81 =(− 9 )⋅(− 9 ) then √ 81 =− 9 and we can say that √ 81 =± 9.