CBSE Class 1 Mathematics — NCERT Solutions

Given: We look at the picture from the poem showing a red ball and a bed.

Concept: Positional words — 'above' means higher than, 'under' means below/beneath, 'on' means resting on top of the surface.

From the picture, the red ball is resting on top of the bed's surface.

Answer: The red ball is on the bed.

Given: We look at the picture showing a cat and a car.

Concept: Positional words — 'inside' means within, 'outside' means not within, 'on' means on top of the surface.

From the picture, the cat is sitting within the car.

Answer: The cat is inside the car.

Given: We need to sort objects into two groups — Round and Long.

Concept: Round objects are circular/spherical in shape (they have no corners or edges and look like a circle or ball). Long objects are elongated/stretched in shape (they are much longer than they are wide).

Examples of Round objects (draw in the 'Round' box):

• Ball
• Bangle
• Coin
• Orange

Examples of Long objects (draw in the 'Long' box):

• Pencil
• Ruler
• Straw
• Stick

Answer: Draw each object in the correct box based on its shape — round objects (ball, bangle, coin) go in the Round box, and long objects (pencil, ruler, straw) go in the Long box.

Given: We need to match objects that have the same shape.

Concept: Objects that look alike in shape (both round, both long, both box-shaped, both cone-shaped, etc.) are matched together.

Method: Look at each object carefully and find another object in the list that has the same shape.

Examples of matches:

• Ball ↔ Orange (both are round/spherical)
• Pencil ↔ Straw (both are long and cylindrical)
• Box ↔ Book (both are rectangular/cuboid)
• Ice-cream cone ↔ Birthday cap (both are cone-shaped)
• Tin can ↔ Glass (both are cylindrical)

Answer: Draw lines connecting each object to the object with the same shape.

Given: A story picture showing birds eating a mango.

The birds shown in the picture include sparrows, parrots, and other common birds that come to eat a mango on a tree branch.

(Note: The exact birds depend on the illustration. Students should look at the picture and name the birds they can identify, such as sparrow, parrot, crow, etc.)

Given: The story begins with a squirrel eating a mango.

In the beginning, only $1$ animal (the squirrel) was eating the mango.

$$\text{Answer} = 1$$

Given: Four ladybugs with different numbers of dots are shown in the pictures.

Concept: Count each dot carefully on every bug and write the number.

Working:

• Bug 1: Count all the dots on its body → $6$ dots
• Bug 2: Count all the dots on its body → $4$ dots
• Bug 3: Count all the dots on its body → $8$ dots
• Bug 4: Count all the dots on its body → $10$ dots

(Note: Exact dot counts depend on the printed images. The method is to count each dot one by one and write the total number below each bug.)

Final Answer: Write the counted number below each bug.

Given: 4 children and 2 more children join them.
Concept: Addition means putting two groups together to find the total.
$$4 + 2 = 6$$
Answer: 4 children and 2 children altogether make 6 children.

Given: Rumi's basket has 7 tomatoes. Shami's basket has 5 tomatoes.

Concept: Addition means putting together.

Working: Start at 7, count 5 more: 8, 9, 10, 11, 12.

$$7 + 5 = 12$$

Answer: They have 12 tomatoes altogether.

Given: Lina's family includes her grandparents (2), parents (2), brother Shanbor (1), and Lina herself (1).

Concept: Counting family members.

Working: Grandfather + Grandmother + Father + Mother + Shanbor + Lina = 6 members.

Answer: There are 6 members in Lina's family (grandparents, parents, brother Shanbor, and Lina).

Given: Each box holds 10 oranges. Simran packs all the oranges into boxes of 10.

Concept: Grouping by tens helps us count large numbers easily.

Working: When we group oranges in sets of 10 and place them in boxes, each full box = 10 oranges. We count the number of full boxes and any oranges left over.

For example, if there are 2 full boxes and 3 oranges left over:
$$2 \text{ tens} + 3 \text{ ones} = 23 \text{ oranges}$$

She would need as many boxes as there are complete groups of 10 oranges, plus any remaining oranges stay outside a full box.

Answer: Count the boxes shown in the picture. Each box = 10 oranges. Add the leftover oranges to find the total. (Students count the picture and write the number.)

Given: A repeating pattern of shapes/objects is shown in figure A (the images are not visible, but the activity requires identifying and continuing the repeating unit).

Concept: A pattern repeats in a fixed order. To extend it, identify the repeating unit and draw the next elements following the same order.

Steps:

1. Look carefully at the shapes/objects already drawn.
2. Find the repeating unit (the group that keeps repeating).
3. Draw the next 2–3 elements following the same repeating unit.

Answer: Continue drawing the same repeating unit in the same order to extend the pattern.

This is an open-ended discussion question. A sample daily routine for a Class 1 student:

• I wake up in the morning.
• I brush my teeth and take a bath.
• I eat breakfast.
• I go to school.
• I come home and eat lunch.
• I play in the evening.
• I do my homework.
• I eat dinner at night.
• I go to sleep.

(Students should describe their own daily routine in their own words.)

Given: 2 children sit on each horse, and there are 4 horses.

Concept: Repeated addition (equal groups).

Working:
$$2 + 2 + 2 + 2 = 8$$

4 times 2 = 8

Answer: $\boxed{8}$ children can sit on the horse swing altogether.

Given: Cost of one ball = ₹20.

Riya's coins (₹5 each):
Number of ₹5 coins needed = ₹20 ÷ ₹5 = 4 coins
$$5 + 5 + 5 + 5 = 20$$
So Riya gives 4 coins of ₹5.

Sahil's notes (₹10 each):
Number of ₹10 notes needed = ₹20 ÷ ₹10 = 2 notes
$$10 + 10 = 20$$
So Sahil gives 2 notes of ₹10.

Given: A picture of various toys is shown (the exact count depends on the picture; typical NCERT values are used below).

By counting each type of toy in the picture:

• Elephants: $3$
• Teddy Bears: $2$
• Cars: $4$
• Dolls: $4$

(Note: These counts are based on the standard NCERT textbook picture. Students should count from their own textbook picture.)