With the help of a Joyful Mathematics Class 1 Solutions Chapter 4 Making 10 (Numbers 10 to 20) students can tackle challenging problems with confidence.

## Joyful Mathematics Class 1 NCERT Solutions Chapter 4 Making 10 (Numbers 10 to 20)

Dotty Bug and her Designs (Page 33)

Have you seen a ladybug? She has dots on her body.

Have you ever noticed the number of dots?

A. Write the number of dots on each bug.

Answer:

B. Make some dot designs with objects like tamarind seeds, pebbles, buttons, bindis, etc., and identify the number of dots in each arrangement.

Answer:

Do it yourself.

C. Identify and write the numbers formed by the arrangement of the red bindis.

Answer:

Let Us Play (Page 34)

D. Play with your friend. Roll the dice and colour a box with the same number of dots as on the dice. Take turns with your friend and roll again.

The child with the number of colored boxes will win.

Answer:

Do it yourself.

**Vanishing Buttons**

Gola Monkey wears his favourite shirt with four buttons. He went to the garden and ate too many bananas as he was fond of them. What do you think happened then?

One of the buttons popped out and rolled away. But he cannot dream of giving up bananas and keeps losing all the buttons one by one.

Answer:

Write the number of birds sitting on the branch of the tree.

Answer:

Think and Tell (Page 36)

A. How many suns do you see in the night?

Answer:

0

B. How many moons do you see at noon?

Answer:

0

Tenth Birthday (Page 37)

It is Aasthaâ€™s tenth birthday. Her father prepared halwa for her. She is celebrating her birthday with her friends.

Answer:

Let Us Do (Page 38)

A. Count and draw beads to make a string of 10 beads.

Answer:

B. Draw buttons to make a ten-frame of buttons.

Answer:

The Handy Five and Ten (Page 39)

Follow the pattern and write the number pairs separated by the stick.

Answer:

Number Pairs of 10 (Page 40)

Let us play the finger game with both hands. A child will show some fingers. The other child has to show the other fingers that are folded. Follow the pattern and write the number pairs in the given table.

Answer:

Write the numbers 11 to 20. (Page 43)

Answer:

Count and Write (Page 44)

A. Count and write the answers.

Answer:

B. Colour the tens frames to show the number.

Answer:

C. Write down the numbers in sequence.

Answer:

D. Encircle a group of ten in the pictures and match with the number.

Answer:

E. A group of friends while playing built some towers.

(i) Tick the tallest tower.

(ii) Which tower used the most number of blocks? Write the number of blocks used in it.

(iii) Which tower used the least number of blocks? Write the number of blocks used in it.

Answer:

(i) Tick the tallest tower.

(ii) Which tower used the most number of blocks? Write the number of blocks used in it. **(9)**

(iii) Which tower used the least number of blocks? Write the number of blocks used in it. **(4)**

Let Us Do (Page 46)

A. Circle the smallest number.

(i) 8, 12, 6

(ii) 14, 11, 19

Answer:

(i) 8, 12, **6**

(ii) 14, **11**, 19

B. Circle the biggest number.

(i) 16, 19, 11

(ii) 11, 17, 9

Answer:

(i) 16, **19**, 11

(ii) 11, **17**, 9

C. Find the numbers hidden under the paw.

Answer:

D. Write the numbers from the biggest to the smallest.

11, 3, 16, 20, 13, 9.

Answer:

E. Let us count and write.

(i) Number of blocks

(ii) Number of white dots

Answer:

(i) Number of blocks **(11)**

(ii) Number of white dots **(13)**

F. Join the numbers from 1 to 20.

Answer:

**Project Work**

A. Find out the things from your surroundings that are in the group of 10. For example, bindi cards have bindis in groups of 10.

B. Ask children to make their number cards 10 to 20. They can use old cardboard, waste materials, etc.