Revision Chapter 9 – HOUSE OF HUNDREDS II

CLASS III – MATHS MELA

Chapter 9 – HOUSE OF HUNDREDS – II

---

KNOWLEDGE (10 MARKS)

Very Short Answer (1×4=4)

Q1. In the number 457, what is the place value of 5?

Answer

50

Solution

In 457, 5 is in the tens place.
5 tens means 5 × 10 = 50.
So its place value is 50.

Q2. Write 364 in expanded form.

Answer

300 + 60 + 4

Solution

3 is in hundreds place = 300
6 is in tens place = 60
4 is in ones place = 4
So expanded form is 300 + 60 + 4.

Q3. What is the successor of 599?

Answer

600

Solution

Successor means the next number.
599 + 1 = 600.

Q4. What is the predecessor of 400?

Answer

399

Solution

Predecessor means the number before.
400 − 1 = 399.

Short Answer (2×2=4)

Q5. Arrange in ascending order: 782, 728, 872

Answer

728, 782, 872

Solution

Ascending means smallest to biggest.
Compare hundreds: 7, 7, 8.
8 is biggest, so 872 comes last.
Between 782 and 728, 728 is smaller.
So order is 728, 782, 872.

Q6. Make the greatest number using digits 5, 3 and 8.

Answer

853

Solution

Arrange digits from biggest to smallest.
8 is biggest, then 5, then 3.
So the greatest number is 853.

Long Answer (1×2=2)

Q7. A library has 478 books. 100 more books are added. How many books are there now?

Answer

578 books

Solution

Books = 478
Added books = 100
478 + 100 = 578.
Now there are 578 books.

Q8. Compare 425 and 254. Which is greater?

Answer

425 is greater

Solution

Compare hundreds place.
4 hundreds is more than 2 hundreds.
So 425 is greater.

---

UNDERSTANDING (10 MARKS)

Very Short Answer (1×4=4)

Q9. Write the number name of 306.

Answer

Three hundred six

Solution

3 is hundreds, 0 is tens, 6 is ones.
So it is written as Three hundred six.

Q10. What comes between 498 and 500?

Answer

499

Solution

Counting forward: 498, 499, 500.
So 499 comes between them.

Q11. Round 478 to nearest hundred.

Answer

500

Solution

Since 78 is more than 50,
we round up to next hundred.
So 478 becomes 500.

Q12. Write the smallest 3-digit number.

Answer

100

Solution

3-digit numbers start from 100.
So the smallest 3-digit number is 100.

Short Answer (2×2=4)

Q13. Find the difference between 600 and 245.

Answer

355

Solution

600 − 245 = 355.
So difference is 355.

Q14. Write expanded form of 725.

Answer

700 + 20 + 5

Solution

7 hundreds = 700
2 tens = 20
5 ones = 5.

Long Answer (1×2=2)

Q15. There are 356 boys and 244 girls in a school. How many students in total?

Answer

600 students

Solution

356 + 244 = 600.
Total students = 600.

Q16. Write a number that has 5 hundreds, 4 tens and 3 ones.

Answer

543

Solution

5 hundreds = 500
4 tens = 40
3 ones = 3
So number is 543.

---

ABILITY TO COMPUTE (10 MARKS)

Q17. 478 + 122 = ?

Answer

600

Solution

Add hundreds, tens and ones.
478 + 122 = 600.

Q18. 800 − 356 = ?

Answer

444

Solution

Subtract carefully.
800 − 356 = 444.

Q19. Double of 345 = ?

Answer

690

Solution

345 × 2 = 690.

Q20. Half of 900 = ?

Answer

450

Solution

900 ÷ 2 = 450.

---

PROBLEM SOLVING (10 MARKS)

Q21. A factory made 425 toys in January and 375 in February. How many toys were made in total?

Answer

800 toys

Solution

425 + 375 = 800.
So 800 toys were made.

Q22. A town has 900 houses. 275 houses are painted. How many are not painted?

Answer

625 houses

Solution

900 − 275 = 625.
So 625 houses are not painted.