Exercise 2.3a (Adding 4 digit Numbers with regrouping)

Exercise 2.3a

1. Write the following numbers in vertical order and add.

a) 216, 3422, 4019, 497

b) 1002, 2347, 1976, 2005, 2007

c) 1978, 1965, 2704, 473

2. Add the total amount of the following 4 piggy banks.

3. The sum of 1215 + 2367 + 1673 + 3120 = 8375

a) 8585

b) 8225

c) 8375

d) 8285

4. 2076 + 276 + 2974 + 1751 = 7077

a) 9561

b) 7077

c) 7377

d) none of these

5. What is the sum of five hundreds and fifteen tens?

a) 650

b) 550

c) 5150

d) 6150

6. The sum of the greatest 3 digit number and the smallest 4 digit number is

a) 1999

b) 1099

c) 1990

d) 9999

7. 9999 + 1 = 10000

a) 10,000

b) 1000

c) 1001

d) 10001

8. The population of a village is 8375. The number of males is 4154. What is the number of females?

Population of a village = 8375

No. of males               = 4154

No. of Females          = 4221

Answer: There are 4221 females in the village

9. A refrigerator costs Rs 9543 and a DVD player costs Rs 6412. Which costs more and by how much?

Cost of a refrigerator = 9543

Cost of a DVD player   = 6412

Difference                  = 3131

Answer: Refrigerator costs Rs. 3131 more than the DVD player.