### Trick 1.

**Square root for 21904:**

Number Split as

21904 219 | 04

Split the number keeping the last 2 digits aside

`14^{2}` < 219 < `5^{2}`

**Choose the smaller number (14) as 1st Part**

If the square ends in | 1 | 4 | 9 | 6 | 5 | 0 |

The no. would end in | 1,9 | 2,8 | 3,7 | 4,6 | 5 | 0 |

14 | 8

**Ans.**148

### Trick 2.

**Square root for 20164:**

Number Split as

20164 201 | 64

Split the number keeping the last 2 digits aside

`14^{2}` < 201 < `15^{2}`

**Choose the smaller number (14) as 1st Part**

If the square ends in | 1 | 4 | 9 | 6 | 5 | 0 |

The no. would end in | 1,9 | 2,8 | 3,7 | 4,6 | 5 | 0 |

14 | 2

**Ans.**142

### Trick 3.

**Square root for 143641:**

Number Split as

143641 1436 | 41

Split the number keeping the last 2 digits aside

`37^{2}` < 1436 < `38^{2}`

If the square ends in | 1 | 4 | 9 | 6 | 5 | 0 |

The no. would end in | 1,9 | 2,8 | 3,7 | 4,6 | 5 | 0 |

37 | 9

**Ans.**379

### Trick 4.

Square root for 69169:Number Split as

69169 691 | 69

Split the number keeping the last 2 digits aside

`26^{2}` < 219 < `27^{2}`

Choose the smaller number (26) as 1st Part

If the square ends in | 1 | 4 | 9 | 6 | 5 | 0 |

The no. would end in | 1,9 | 2,8 | 3,7 | 4,6 | 5 | 0 |

26 | 3

**Ans.**263

#### Try out some Square Examples for

**24964, 51984, 94249, 18769**

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