NCERT Solutions for Class 1 Maths Chapter 5

NCERT Solutions for Class 1 Maths Chapter 5 - Numbers from Ten to Twenty

A part of the number world has been presented to you with the help of Class 1 Maths Chapter 5. These have been given to by the expert teachers of Vedantu. The counting and understanding of Ten to twenty are very easy by the expert faculty of Vedantu. These notes are meant for identifying and understanding the numbers from ten to twenty. You can easily download the PDF version, which is right there on the Vedantu website and learn the numbers from ten to twenty. The notes are made based on NCERT solutions Class 1 Maths from ten to twenty.


The Solutions for Class 1 Maths Chapter 5 will soon be uploaded on this page.

NCERT Solutions Class 1 Maths Numbers From Ten to Twenty - Free PDF Download

The simplified notes of CBSE Class 1 Maths Chapter 5 solutions are available as a PDF form. The Vedantu website gives full access to the PDF notes, which will help you to understand the counting from ten to twenty. It also explains the mathematical operations of the numbers from ten to twenty. It also explains the grouping of the numbers in the set of 10. These notes also present the pictorial description, which will make the object's concrete and thus makes counting them simple. NCERT solutions Class 1 Maths Chapter 5 available on the website will be a fun way for the children to learn numbers from ten to twenty.


5.1. From Ten to Twenty

Meaningful counting is an essential component of mathematics. Understanding and operating numbers is a key skill in mathematics. The grouping of the objects will help them to consider them as tens, and the single object will be treated as a unit. The set of sticks will reinforce Unit place. In the first section, the student will group the objects as 10 and how it is referred to in Maths. The student has to consider the group as a single unit of 10 and count the ones as a single unit. For example, 12 oranges will be seen as a group of 10 + 2 singles.

This chapter also reinforces the concept of tens and ones. The students have to read the group as 10+ single units.

In the second section, the students have to count the numbers from 10 to 20. The student will count and write the number against it. Further, they have to complete the task by filling the number or drawing the object. For example, 

12 = 10 + 2

Finally, they have to break down each number from ten to twenty in the form of tens and ones.

The students will learn to compare the objects in numbers. A pack of 17 objects will be compared to a bunch of 20 objects. The children will learn the sequence of the number and join the dot to a number. 


The students are expected to learn the sequence and identify the missing number from the list. It also covers the before or after number type of question. They will be taught to compare the numbers as bigger or smaller numbers.


The final section of this chapter will reinforce addition and subtraction involving numbers from 10 to 20. There are a lot of practice sums in the form of vertical sum and the word problem to reinforce the addition and subtraction using the numbers 10 to 20.


Key Features of NCERT Solutions Class 1 Maths Chapter 5

Check out the Class 1 Maths Chapter 5 NCERT solution to understand numbers from 10 to 20 and concepts related to them. It also explains the concept of unit place, comparison of numbers, missing numbers, addition and subtraction. These notes are presented by the expert's Maths faculty of Vedantu. Some of the benefits of availing Twenty-One To Fifty Class 1 NCERT solutions notes are:

  • These notes are made according to the grade 1 curriculum.

  • The notes will improve their computational skills.

  • This will help the child to learn the numbers in a playful way.

  • These notes are provided with the pictures which will help the student to learn about numbers and apply in his/her life.

FAQs (Frequently Asked Questions)

1. Statement – 15 Comes Before 14. True or False.

It’s false, 15 comes after 14.

2. How Many Tens and Ones are There in the Number 17?

17 has 1 ten and 7 ones.

3. Which are Bigger 5 Tens and 3 Ones or 6 Tens and 2 Ones.

5 tens and 3 ones are 50+3 and 6 tens and 2 ones are 60+2. 62 is greater than 53.

4. Which of the following numbers has more tens than other:

  1. 57 or 19

  2. 34 or 55

  3. 99 or 10

  1. 57 as it has 5 tens.

  2. 55 as it has 5 tens.

  3. 99 as it has 9 tens.

5. What are the concepts discussed in Chapter 5 of Class 1 NCERT Maths textbook?

The Chapter 5 of the NCERT textbook discusses numbers from 10 to 20. In the chapters before only single digit numbers were discussed with students. Now, they would be taught to identify larger numbers, compare them and perform addition, subtraction etc methods. To read more about the chapter students can refer to the Vedantu website or app.

6. What is tens digit and the unit digit according to Chapter 5 of Class 1 NCERT Maths?

Tens digit is the digit that is on the left or in the multiple of tens. And the addition to it is treated as a single unit. For example, number 12 is 10+2, hence 10 is the tens digit as it has one tens and two is seen as a single unit. Students are taught to identify as this in the beginning. 

7. Is 16 bigger than 11 according to Chapter 5 of Class 1 NCERT Maths?

Yes, 16 is a bigger number than 11. 16 is a bigger number than 11 because the value of units in it is higher than 11. The tens digit in both is the same. Both of these numbers have one tens. What makes 16 greater than one is the value of the units. six is a greater number than one. Hence, 16 is a greater number than 11. If the value of the tens is the same, the value of units is looked at to determine the correct answer. 

8. How do you compare numbers according to Chapter 5 of Class 1 NCERT Maths?

The students are taught to compare the bigger numbers the same way they were taught to compare the single numbers. By matching and using the greater than or less than signs. In the exercises, if bundles of objects or a number of items is shown on one side then the students have to match the quantity to the given numbers in the other column. They can also be asked to tell which is greater by identifying tens and units in the numbers. To practise more questions on this chapter, students can download the NCERT Solutions PDF free of cost.

9. How many tens do 68 and 89 have according to Chapter 5 of Class 1 NCERT Maths?

68 has six tens and 89 has eight tens. 

Hence, 89 is a greater number than 68. When looking to define which number is greater than the other we look at the tens and the units digits. The tens digit is the one on the left and the units digit is on the right. Students are taught to identify numbers and understand quantity by matching the number of items to the number. You can find similar questions in the solutions PDF on the Vedantu website. You can also refer to revision notes and important questions prepared by Vedantu experts to prepare better for the exam. 

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