NCERT Solutions for Class 1 Maths Chapter 8 Numbers from Twenty One to Fifty

Numbers from Twenty One to Fifty Class 1 Maths Chapter 8 Overview

Numbers from 21 to 50 help children understand how numbers grow with tens and ones.

For example:

 21 means 2 tens and 1 one

 34 means 3 tens and 4 ones

 50 means 5 tens and 0 ones

This concept helps children count bigger numbers more easily.

The Concept of Tens and Ones in Chapter 8

Before learning numbers from 21 to 50, it is important to understand tens and ones.

 10 ones make 1 ten

 A group of ten can be called one bundle

 Extra single sticks, beads, or objects are called ones

Example:

 2 tens and 3 ones = 23

 4 tens and 5 ones = 45

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Numbers from 21 to 30

In these numbers, the tens digit is mostly 2.

Numbers from 31 to 40

Now the tens digit becomes 3.

 31 = 3 tens and 1 one

 34 = 3 tens and 4 ones

 36 = 3 tens and 6 ones

 39 = 3 tens and 9 ones

 40 = 4 tens and 0 ones

Numbers from 41 to 50

In this group, the tens digit is 4, and then it changes to 5 at 50.

 41 = 4 tens and 1 one

 42 = 4 tens and 2 ones

 46 = 4 tens and 6 ones

 49 = 4 tens and 9 ones

 50 = 5 tens and 0 ones

Read More - NCERT Solutions for Class 1 English Mridang Chapter 7 The Food We Eat

Numbers from Twenty One to Fifty Class 1 Maths Question Answer

Go through these class 1 chapter 7 maths NCERT solutions to do well in chapter 7. 

 Fill in the blanks

1. 2 tens and 5 ones make _____. (25)

2. 2 tens and 9 ones make _____. (29)

3. 3 tens and 0 ones make _______. (30)

4. 4 tens and 2 ones make ______. (42)

5. 5 tens and 0 ones make ______. (50)

Write the number names

1. 21 = __________Twenty-one

2. 28 = ________Twenty-eight

3. 33 = _______Thirty-three

4. 47 = ________Forty-seven

5. 50 = _________Fifty

Write in digits

1. Twenty-three = 23

2. Thirty-one = 31

3. Thirty-nine = 39

4. Forty-four = 44

5. Forty-nine = 49

Numbers from Twenty One to Fifty Class 1 Short Question Answers

Q1. What does 24 mean?

Ans. 24 means 2 tens and 4 ones.

Q2. What comes after 29?

Ans. 30 comes after 29.

Q3. What comes before 41?

Ans. 40 comes before 41.

Q4. How many tens are there in 45?

Ans. There are 4 tens in 45.

Q5. How many ones are there in 32?

Ans. There are 2 ones in 32.

Numbers from Twenty One to Fifty Class 1 Question Answer Practice

Fill in the missing numbers

21, 22, __, 24, __, 26, __, 28, __, 30

Answers: 23, 25, 27, 29

31, 32, 33, __, 35, __, 37, 38, __, 40

Answers: 34, 36, 39

41, __, __, 44, 45, __, 47, __, 49, 50

Answers: 42, 43, 46, 48

Choose the correct answer

1. Which number has 3 tens and 6 ones?

   a) 26

   b) 36

   c) 46

   Ans. b) 36

2. What comes after 49?

   a) 48

   b) 50

   c) 40

   Ans. b) 50

3. Which number has 4 tens and 1 one?

   a) 41

   b) 14

   c) 31

   Ans. a) 41

4. Which is bigger?

   a) 29

   b) 42

   Ans. b) 42

 True or False

1. 35 has 3 tens and 5 ones.

   True

2. 50 has 4 tens and 10 ones.

   False

3. 21 comes before 22.

   True

4. 39 comes after 40.

   False

Read More - NCERT Solutions for Class 1 Maths Chapter 6 Time

Place Value Summary for Numbers from Twenty One to Fifty Class 1

Here is the summary table to understand the place value for numbers from twenty one to fifty class 1 chapter 8: 

Numbers From Twenty One to Fifty Class 1 NCERT solutions: Fun Activities

These simple activities can make learning more enjoyable:

•  Bundle Game: Make groups of 10 using pencils, straws, or sticks.

•  Bead Counting: Count beads in tens and ones.

•  Number Hunt: Find numbers between 21 and 50 in books, calendars, or around the house.

•  Write and Read: Write number names and say them aloud.

Important Points to Remember in Chapter 8

 10 ones make 1 ten.

 21 to 29 have 2 tens.

 31 to 39 have 3 tens.

 41 to 49 have 4 tens.

 50 has 5 tens and 0 ones.

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