Here the students will recall the numbers from 0 to 10 and learn 2 digit number. Also, the students will learn about the names of each two-digit number and the uses of two-digit numbers in real life.

In this learning concept, the student will learn about

- 1 to 100 numbers in words
- The Smallest two digit
- The greatest two digit
- The smallest 3-digit number

Each concept is explained to students using examples and illustrations, and a concept map is also given at the end to summarize the whole idea. At the end of the page, two printable Class 1 math worksheets with solutions are attached for the students to practice.

The numbers from 1 to 9 are called single digit numbers.

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |

One | Two | Three | Four | Five | Six | Seven | Eight | Nine |

The numbers from 10 to 99 are called 2-digit numbers.

- The number 10 is written in words as ‘TEN’.
- 10 comes after the greatest 1-digit number 9.
- 10 is the smallest 2-digit number.
- The number 10 plays a very important role in mathematics.
- Usually, we group numbers in 10 to make calculations easy.

**Example:**

We can group 23 matchsticks in 10 as:

2 bundles of 10 matchsticks and 3 individual matchsticks.

It makes the counting easier.

- From 11-19 there are different wordings for these numbers.

11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |

Eleven | Twelve | Thirteen | Fourteen | Fifteen | Sixteen | Seventeen | Eighteen | Nineteen |

- Numbers from 13 to 19 are called ‘TEEN’ numbers.
- From 20 onwards, there is some logic in the number names.
- The greatest number 2-digit number is 99.
- The number that comes after 99 is 100.
- 100 is the smallest 3-digit number.
- 100 is written in word as ‘Hundred’ or ‘One-Hundred’.

**Question 1:**Write the following numbers in words.

56, 89, 13

**Answer:**

56 |
Fifty-six |

89 |
Eighty-nine |

13 |
Thirteen |

**Question 2:**Write the following numbers in numerals.

Ninety-eight, Forty-seven, Thirty-three

**Answer:**

Ninety-eight: 98, Forty-seven: 47, Thirty-three: 33

We can see the uses of the numbers from 1 to 100 everywhere in our daily life. Following are some examples:

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