b) How many tigers does Uttarakhand have? H T O 4 4 4 The blank frame printed in the book for part (b).

H T O 4 4 4 The blank frame printed in the book for part (b). Uttarakhand has 116 more than Maharashtra, so we add again. 444 + 116 Ones: 4 + 6 = 10 → write 0, carry 1 ten Tens: 4 + 1 + 1 = 6 Hundreds: 4 + 1 = 5 = 560 H T O 1 4 4 4 1 1 6 5 6 0 The completed frame for Uttarakhand. Uttarakhand has 560 tigers. Why it happens: The ones made a full ten, so that ten had to move across to the tens place.

c) How many tigers does Madhya Pradesh and Uttarakhand have? Th H T O The blank four-column frame printed in the book for part (c).

Th H T O The blank four-column frame printed in the book for part (c). From parts (a) and (b): Madhya Pradesh 785, Uttarakhand 560. 785 + 560 Ones: 5 + 0 = 5 Tens: 8 + 6 = 14 → write 4, carry 1 hundred Hundreds: 7 + 5 + 1 = 13 → write 3, carry 1 thousand Thousands: 1 = 1345 Th H T O 1 1 7 8 5 5 6 0 1 3 4 5 The completed frame for the two states together. Madhya Pradesh and Uttarakhand have 1345 tigers together. Why it happens: The hundreds made more than ten hundreds, and 10 H = 1 Th. That is why a thousands digit appears.

NCERT Solutions for Class 4th Maths Chapter 10 Adding four-digit numbers with carrying — How Many Animals?

Book page 152 Updated on2026-09-19

Q1.

The population of elephants in Karnataka is 6049 and in Kerala is 3054. How many total elephants are there in these two states? Estimate the answer.

Answer

Estimate first. 6049 is about 6000 and 3054 is about 3000.

6000 + 3000 = about 9000 elephants

Now the exact answer.

6049 + 3054
Ones: 9 + 4 = 13 → 10 O = 1 T, write 3, carry 1 ten
Tens: 4 + 5 + 1 = 10 → 10 T = 1 H, write 0, carry 1 hundred
Hundreds: 0 + 0 + 1 = 1
Thousands: 6 + 3 = 9
= 9103

Th	H	T	O
	1	1
6	0	4	9
3	0	5	4
9	1	0	3

The same sum written in the place-value frame.

There are 9103 elephants in Karnataka and Kerala. Our estimate of 9000 was close.

Why it happens: We can only keep 9 in any one place. When ones reach 10, we bundle them into one ten and move it left.

Q2.

The highest number of leopards are found in three states. Gujarat has 1355, Karnataka has 1131 and Madhya Pradesh has 1817. How many total leopards are there in these states? Estimate the answer.

Answer

Estimate first. 1355 is about 1400, 1131 is about 1100, 1817 is about 1800.

1400 + 1100 + 1800 = about 4300 leopards

Now the exact answer.

1355 + 1131 + 1817
Ones: 5 + 1 + 7 = 13 → write 3, carry 1 ten
Tens: 5 + 3 + 1 + 1 = 10 → write 0, carry 1 hundred
Hundreds: 3 + 1 + 8 + 1 = 13 → write 3, carry 1 thousand
Thousands: 1 + 1 + 1 + 1 = 4
= 4303

Th	H	T	O
1	1	1
1	3	5	5
1	1	3	1
1	8	1	7
4	3	0	3

The three numbers added in the place-value frame.

There are 4303 leopards in these three states.

Why it happens: Three numbers can be added in one go. We still carry the same way — 10 of any place make 1 of the next place.

Q3.

Maharashtra has 444 tigers. Madhya Pradesh has 341 more tigers than Maharashtra. Uttarakhand has 116 tigers more than Maharashtra. a) How many tigers does Madhya Pradesh have?

H	T	O
4	4	4

The blank frame printed in the book for part (a).

Answer

H	T	O
4	4	4

The blank frame printed in the book for part (a).

‘More than’ means we add.

444 + 341
Ones: 4 + 1 = 5
Tens: 4 + 4 = 8
Hundreds: 4 + 3 = 7
= 785

H	T	O
4	4	4
3	4	1
7	8	5

The completed frame for Madhya Pradesh.

Madhya Pradesh has 785 tigers.

Why it happens: Madhya Pradesh has all of Maharashtra’s 444 tigers and 341 tigers extra, so we put the two amounts together.

Q4.

b) How many tigers does Uttarakhand have?

H	T	O
4	4	4

The blank frame printed in the book for part (b).

Answer

H	T	O
4	4	4

The blank frame printed in the book for part (b).

Uttarakhand has 116 more than Maharashtra, so we add again.

444 + 116
Ones: 4 + 6 = 10 → write 0, carry 1 ten
Tens: 4 + 1 + 1 = 6
Hundreds: 4 + 1 = 5
= 560

H	T	O
	1
4	4	4
1	1	6
5	6	0

The completed frame for Uttarakhand.

Uttarakhand has 560 tigers.

Why it happens: The ones made a full ten, so that ten had to move across to the tens place.

Q5.

c) How many tigers does Madhya Pradesh and Uttarakhand have?

Th	H	T	O

The blank four-column frame printed in the book for part (c).

Answer

Th	H	T	O

The blank four-column frame printed in the book for part (c).

From parts (a) and (b): Madhya Pradesh 785, Uttarakhand 560.

785 + 560
Ones: 5 + 0 = 5
Tens: 8 + 6 = 14 → write 4, carry 1 hundred
Hundreds: 7 + 5 + 1 = 13 → write 3, carry 1 thousand
Thousands: 1
= 1345

Th	H	T	O
1	1
	7	8	5
	5	6	0
1	3	4	5

The completed frame for the two states together.

Madhya Pradesh and Uttarakhand have 1345 tigers together.

Why it happens: The hundreds made more than ten hundreds, and 10 H = 1 Th. That is why a thousands digit appears.

Q6.

d) How many tigers are there in total across the three states?

Th	H	T	O

The blank four-column frame printed in the book for part (d).

Answer

Th	H	T	O

The blank four-column frame printed in the book for part (d).

Add all three states: Maharashtra 444, Madhya Pradesh 785, Uttarakhand 560.

444 + 785 + 560
Ones: 4 + 5 + 0 = 9
Tens: 4 + 8 + 6 = 18 → write 8, carry 1 hundred
Hundreds: 4 + 7 + 5 + 1 = 17 → write 7, carry 1 thousand
Thousands: 1
= 1789

Th	H	T	O
1	1
	4	4	4
	7	8	5
	5	6	0
1	7	8	9

The completed frame for all three states.

There are 1789 tigers in the three states together.

Check it yourself: 1345 (from part c) + 444 = 1789. The two ways agree.

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