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NCERT: Math-Magic Solutions for Class-1, Chapter-8: Numbers from Twenty-one to Fifty

The chapter ‘Numbers from** Twenty-one to Fifty’** deals with the identification and
usage of the numbers from twenty-one to fifty. With a broad range of exercises.

it covers the following topics:

writing numerals for twenty-one to fifty |
grouping objects into tens and ones |

drawing representation for groups of tens and ones |

writing numerals for twenty-one to fifty |

grouping objects into tens and ones |

drawing representation for groups of tens and ones |

Created in accordance with the CBSE syllabus and guidelines of NCERT, these image-based exercises are not only interactive but also crafted to encourage students to put their thinking caps on.

NCERT Solutions for Maths Class 1 Chapter 8 Twenty-one to Fifty in PDF format can be downloaded for free from the given link..

### Question and Answers

**Chapter 8: Numbers from Twenty-one to Fifty
**

**Question 1:** Fill in the blanks.

**Answer:**

Step 1:In the first picture there is a bundle of 10 matchsticks and 5 individual matchsticks. 10 plus 5 is equal to 15. Write 15 in the first given circle.

Step 2: In the second picture there is a bundle of 10 matchsticks and 6 individual matchsticks. 10 plus 6 is equal to 16. Write 16 in the second given circle. The correct answer is:

**Question 2:** Write the number.

**Answer:**

Step 1: A bundle of 10 matchsticks represents 1 ten, write 1 at the tens place.

Step 2: 2 individual matchsticks represent number 2 at the ones place, write 2 at the ones place

Step 3: 1 ten and 2 ones represent the number 12. Write 12 in the circle given at the corner. The correct answer is:

**Question 3:** Write the number.

**Answer:**

Step 1: A bundle of 10 matchsticks represents 1 ten, write 1 at the tens place.

Step 2: 9 individual matchsticks represent 9 at the ones place, write 9 at the ones place.

Step 3: 1 ten and 9 ones represent the number 19. Write 19 in the circle given at the corner. The correct answer is:

**Question 4:** Draw the bundles and ones.

**Answer:**You need to draw some bundle of matchsticks and some
individual matchsticks to make it 15 matchsticks in total.

Step 1: Since number 1 is given at the tens place, draw a bundle of 10 matchsticks in the blank space.

Step 2:The number 5 is given at ones place, draw five individual matchsticks in the blank space. The correct answer is:

**Question 5:** Draw the bundles and ones.

**Answer:**You need to draw some bundle of matchsticks and some
individual matchsticks to make it 20 matchsticks in total.

Step 1: Since number 2 is given at the tens place, draw two bundles of 10 matchsticks in the blank space.

Step 2:The number 0 given at the ones place that represents no individual matchsticks. The correct answer is:

**Question 6:** Draw the bundles and ones.

**Answer:**You need to draw some bundles of matchsticks and some
individual matchsticks to make it 22 matchsticks in total.

Step 1: Since number 2 is given at the tens place, draw two bundles of 10 matchsticks in the blank space.

Step 2:The number 2 is given at the ones place, draw two individual matchsticks in the blank space. The correct answer is:

**Write the number**

**Question 7:**Write the number

**Answer:**

Two bundles of 10 matchsticks represent 2 tens, write 2 at the tens place.

Step 2: 3 individual matchsticks represent number 3 at the ones place, write 3 at the ones place.

Step 3: 2 tens and 3 ones represent the number 23. Write 23 in the circle given at the corner. The correct answer is:

**Question 8:**Write the number

**Answer:**4 ten and 2 ones represent the number 42. Write 42 in
the circle given at the corner. The correct answer is:

**Question 9:**Write the number

**Answer:**

Two bundles of 10 matchsticks represent 2 tens, write 2 at the tens place.

Step 2: 6 individual matchsticks represent 6 at the ones place, write 6 at the ones place.

Step 3: 2 tens and 6 ones represent the number 26. Write 26 in the circle given at the corner. The correct answer is:

**Question 10:**Write the number

**Answer:**

Four bundles of 10 matchsticks represent 4 tens, write 4 at the tens place.

Step 2: 6 individual matchsticks represent 6 at the ones place, write 6 at the ones place.

Step 3: 4 tens and 6 ones represent the number 46. Write 46 in the circle given at the corner. The correct answer is:

**Question 11:**Write the number

**Answer:**

Four bundles of 10 matchsticks represents 4 tens, write 4 at the tens place.

Step 2: No individual matchsticks represents 0 at the ones place, write 0 at the ones place.

Step 3: 4 tens and 0 ones represent the number 40. Write 40 in the circle given at the corner. The correct answer is:

**Question 12:**Write the number

**Answer:**

Step 1: Three bundles of 10 matchsticks represent 3 tens, write 3 at the tens place.

Step 2: 7 individual matchsticks represent 7 at the ones place, write 7 at the ones place.

Step 3: 3 tens and 7 ones represent the number 37. Write 37 in the circle given at the corner. The correct answer is:

**Question 13:**Write the number

**Answer:**

Three bundles of 10 matchsticks represent 3 tens, write 3 at the tens place.

Step 2: 9 individual matchsticks represent 9 at the ones place, write 9 at the ones place.

Step 3: 3 tens and 9 ones represent the number 39. Write 39 in the circle given at the corner. The correct answer is:

**Question 14:**Write the number

**Answer:**

Four bundles of 10 matchsticks represent 4 tens, write 4 at the tens place.

Step 2:6 individual matchsticks represent 6 at the ones place, write 6 at the ones place.

Step 3: 4 tens and 6 ones represent the number 46. Write 46 in the circle given at the corner. The correct answer is:

**Numbers from 21 to 40**

**Question 15:** Fill in the blanks.

**Answer:**

In the picture there are 2 bundles of 10 matchsticks and 6 individual matchsticks. 2 tens and 6 ones represent 26. Write 26 in the given circle. The correct answer is:

**Question 16:** Fill in the blanks.

**Answer:**

In the picture there are 2 bundles of 10 matchsticks that represent 2 tens. Since 2 tens and 7 ones represent 27, draw 7 individual matchsticks to make it 27 matchsticks in total. The correct answer is:

**Question 17:** Fill in the blanks.

**Answer:**

In the picture there are 2 bundles of 10 matchsticks and 5 individual matchsticks. 2 tens and 5 ones represent 25. Write 25 in the given circle. The correct answer is:

**Question 18:** Fill in the blanks.

**Answer:**

In the picture there are 2 bundles of 10 matchsticks and 6 individual matchsticks. 2 tens and 6 ones represent 26. Write 26 in the given circle. The correct answer is:

**Question 19:** Fill in the blanks.

**Answer:**

In the picture there are 2 bundles of 10 matchsticks that represent 2 tens. Since 2 tens and 7 ones represent 27, draw 7 individual matchsticks to make it 27 matchsticks in total. The correct answer is:

**Question 20:** Fill in the blanks.

**Answer:**

In the picture there are 2 bundles of 10 matchsticks that represent 2 tens. Since 2 tens and 8 ones represent 28, draw 8 individual matchsticks to make it 28 matchsticks in total. The correct answer is:

**Question 21:** Fill in the blanks.

**Answer:**

Since 3 tens and 2 ones represent 32, draw three bundles of 10 matchsticks. Write 32 in the given circle. The correct answer is:

**Question 22:** Fill in the blanks.

**Answer:**

In the picture there are three bundles of 10 matchsticks that represent 3 tens. Since 3 tens and 3 ones represent 33, draw 3 individual matchsticks. Write 33 in the given circle. The correct answer is:

**Question 23:** Fill in the blanks.

**Answer:**

In the picture there are three bundles of 10 matchsticks that represent 3 tens, and there are 4 individual matchsticks that represent 4 ones. Since 3 tens and 4 ones represent 34, write 34 in the given circle. The correct answer is:

**Question 24:** Fill in the blanks.

**Answer:**

Since 3 tens and 5 ones represent 35, draw three bundles of 10 matchsticks. Write 35 in the given circle. The correct answer is:

**Question 25:** Fill in the blanks.

**Answer:**

In the picture there are three bundles of 10 matchsticks that represent 3 tens. Since 3 tens and 6 ones represent 36, draw 6 individual matchsticks. Write 36 in the given circle. The correct answer is:

**Question 26:** Fill in the blanks.

**Answer:**

In the picture there are three bundles of 10 matchsticks that represent 3tens, and there are 7 individual matchsticks that represent 7 ones. Since 3 tens and 7 ones represent 37, write 37 in the given circle. The correct answer is:

**Question 27:** Fill in the blanks.

**Answer:**

In the picture there are three bundles of 10 matchsticks that represent 3 tens. Since 3 tens and 8 ones represent 38, draw 8 individual matchsticks. The correct answer is:

**Question 28:** Fill in the blanks.

**Answer:**

In the picture there are three bundles of 10 matchsticks that represent 3 tens. Since 3 tens and 9 ones represent 39, draw 9 individual matchsticks. The correct answer is:

**Numbers from 41 to 50**

**Question 29:** Fill in the blanks.

**Answer:**

In the picture there are four bundles of 10 matchsticks that represent 4 tens. Since 4 tens and 2 ones represent 42, draw 2 individual matchsticks. Write 42 in the given circle. The correct answer is:

**Question 30:** Fill in the blanks.

**Answer:**

Since 4 tens and 4 ones represent 44, draw four bundles of 10 matchstick. Write 44 in the given circle. The correct answer is:

**Question 31:** Fill in the blanks.

**Answer:**

In the given picture there are four bundles of 10 matchsticks that represents 4 tens. Since 4 tens and 5 ones represent 45, draw 5 individual matchsticks. The correct answer is:

**Question 32:** Fill in the blanks.

**Answer:**

In the given picture there are four bundles of 10 matchsticks that represent 4 tens. Since 4 tens and 6 ones represent 46, draw 6 individual matchsticks. Write 46 in the given circle. The correct answer is:

**Question 33:** Fill in the blanks.

**Answer:**

In the given picture there are four bundles of 10 matchsticks that represent 4 tens. Since 4 tens and 8 ones represent 48, draw 8 individual matchsticks. The correct answer is:

**Question 34:** Fill in the blanks.

**Answer:**

Since 4 tens and 9 ones represent 49, draw 4 bundles of 10 matchsticks. The correct answer is:

**Write the missing numbers**

**Question 35:** Fill in the blanks.

**Answer:**

Count the numbers from 1 to 50 and write the missing numbers. The correct answer is: