(i) 3457 and 4522

(ii) 2583 and 6439

(iii) 1865 and 5131

(iv) 7008 and 2995

II. What is 2805 more than 6412?

(i) 0

(ii) 10

(iii) Number itself

2. 3468 + 7856 is same as:

(i) 3468

(ii) 7856 + 3468

(iii) 7856

3. The successor of 7849 is:

(i) 7850

(ii) 7848

(iii) 7489

4. What is 1300 more than 5267?

(i) 7000

(ii) 6567

(iii) 6267

IV. Choose the right answer and fill in the blank.

Adding 1 to a number gives ……………………… of the number.

(i) Predecessor

(ii) No change

(iii) Successor

V. Estimate the given sums by rounding off the given numbers.

VI. In a week 3462 airplanes fly from the International airport in the morning and 2986 fly in the evening. How many total number of airplanes fly from the International airport in a week?

VII. Given below is the addition wheel. Add the number of the inner circle with the number in the middle circle and write the answer in the outer circle.

VIII. In a Marathon, Ron covered 3562 m and Shane is ahead of him by 628 m. How much distance has Shane covered?

1. 3988 + 4122 =

(i) 7000

(ii) 8110

(iii) 9000

2. The sum of smallest 4 digit number and largest 3 digit number is

(i) 9999

(ii) 1000

(iii) 1999

3. The successor of largest 4 digit number is

(i) 10000

(ii) 1000

(iii) 999

4. 348 + 1521 + 6131 =

(i) 7999

(ii) 8000

(iii) 8001

X. Write the next two numbers in the series:

(i) 2600, 3600, 4600, …………….., ……………..

(ii) 2450, 2500, 2550, …………….., ……………..

(iii) 35857, 36857, 378570, …………….., ……………..

XI. Write 3 same numbers in the circles of the triangle which add and give the sum equal to the number in the triangle.

XII. Match the given sums to its solution by coloring the cloud and the rain drop with same color.

XIII. Find the missing numbers in the following:

XIV. Find the estimated sum by rounding to the nearest 10s and compare with the exact sum.

XV. Find the estimated sum by rounding to the nearest 100s and compare with the exact sum.

XVI. Find the estimated sum by rounding to the nearest 1000s and compare with the exact sum.

XVII. In a school library, there are different types of books. Given below is the number of different types of books. Observe the data and answer the questions that follow.

 Type of BooksPicture Story BooksActivity BooksSubject Reference BooksEncyclopaedia Number of Books8765234769583048

(i) Arrange the books in the increasing order of their number.

(ii) What is the total number of books in the library. Give your answer to nearest 10 and 100.

(a) Nearest 10s

(b) Nearest 100s

(iii) If 1200 more Subject Reference Books are bought for the library, what will be the total number of reference books rounded to the nearest 10.

(iv) Compare the sum of Activity Books and Encyclopedia with the number of Subject Reference Books?

I. (i) 7979

(ii) 9022

(iii) 6996

(iv) 10003

II. 9217

III. 1. (iii) Number itself

2. (ii) 7856 + 3468

3. (i) 7850

4. (ii) 6567

IV. (iii) Successor

V. (i) 1340 + 2380, 3720, 3719

(ii) 3500 + 1600, 5100, 5086

(iii) 6000 + 2000, 8000, 7591

(iv) 7000 + 3000, 10000, 10137

VI. 6448

VII. 7059, 7799, 10779, 12299

VIII. 4190 m

IX.

1. (ii)

2. (iii)

3. (i)

4. (ii)

X. (i) 5600, 6600

(ii) 2600, 2650

(iii) 38857, 39857

XI. (i) 3200, 3200, 3200

(ii) 2120, 2120, 2120

XII. (i) 4

(ii) 5

(iii) 1

(iv) 3

(v) 2

XIII.

XIV. (i) estimated sum

(ii) 50 + 60, 110, 109, estimated sum

(iii) 370 + 280, 650, 648, estimated sum

XV. (i) 1300 + 3500 = 4800, 4767, estimated sum

(ii) 400 + 300 = 900, 922, Exact sum

(iii) 2500 + 6000 = 8500, 8459, estimated sum

XVI. (i) 3000 + 5000 = 8000, 7718, estimated sum

(ii) 22000 + 43000 = 65000, 65183, Exact sum

(iii) 1000 + 10000 = 11000, 11229, Exact sum

XVII. (i) 2347, 3048, 6958, 8765

(ii) 21118, 21120, 21100

(iii) 22320

(iv) Number of subject reference books is greater

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