Instructions
- Complete all work neatly in a separate notebook.
- Show all steps for calculations.
- Write dates before starting each section.
- Use ruler for tables and diagrams.
- Revise tables from 2 to 30 daily.
Chapter 1 – Large Numbers
A. Understanding Large Numbers
1. Write in words:
a) 5,00,000 = __________________________________________
b) 75,00,000 = _________________________________________
c) 3,25,00,000 = _______________________________________
d) 12,50,00,000 = ______________________________________
2. Write in figures:
a) Twenty-five lakh = __________
b) One crore five lakh = __________
c) Eight crore seventy lakh = __________
d) Fifty-two lakh thirty thousand = __________
B. Lakh, Ten Lakh, Crore
3. Fill in the blanks:
a) 1 lakh = __________ thousand
b) 10 lakh = __________ thousand
c) 1 crore = __________ lakh
d) 1 crore = __________ thousand
C. Exact and Approximate Values
4. Write exact and approximate values:
a) 4,56,789 ≈ __________ (nearest thousand)
b) 9,87,654 ≈ __________ (nearest ten thousand)
c) 12,34,567 ≈ __________ (nearest lakh)
5. Round off:
a) 6,45,321 to nearest thousand = __________
b) 8,76,543 to nearest ten thousand = __________
c) 3,45,678 to nearest lakh = __________
D. Nearest Neighbours
6. Find nearest numbers:
a) Nearest lakh of 4,49,999 = __________ and __________
b) Nearest thousand of 7,12,345 = __________ and __________
c) Nearest crore of 2,45,00,000 = __________ and __________
E. Pattern in Products
7. Complete the pattern:
a) 2 × 10 = 20
2 × 20 = 40
2 × 30 = ___
2 × 40 = ___
b) 5 × 100 = 500
5 × 200 = 1000
5 × 300 = ___
5 × 400 = ___
F. Facts about Large Numbers
8. Answer:
a) Smallest 7-digit number = __________
b) Largest 7-digit number = __________
c) Smallest 8-digit number = __________
d) Smallest 9-digit number = __________
Chapter 2 – Arithmetic Expressions
A. Positive and Negative Numbers
9. Identify:
a) -5 is a __________ number
b) +12 is a __________ number
c) -0 is equal to __________
d) 0 is a __________ integer
10. Arrange in ascending order:
-5, 3, -1, 7, 0
B. Comparing Expressions
11. Put >, < or = :
a) -3 + 5 ___ 2
b) 10 - 7 ___ 5 - 1
c) -2 + 4 ___ 1 + 1
C. Terms in Arithmetic Expressions
12. Identify terms:
a) 5x + 3y – 7 → Terms: __________________________
b) 12a – 4b + 6 → Terms: _________________________
D. Properties of Integers
13. Write properties:
a) Closure property example: ______________________
b) Commutative property of addition: ______________
c) Associative property: __________________________
E. Role of Integers in Expressions
14. Evaluate:
a) -5 + 8 = ______
b) -12 + 7 = ______
c) 15 + (-9) = ______
d) -6 + (-4) = ______
F. Brackets in Expressions
15. Solve:
a) (5 + 3) × 2 = ______
b) 10 – (4 + 2) = ______
c) (12 – 6) ÷ 2 = ______
G. Tinkering with Terms – 1 (Removing Brackets)
16. Remove brackets:
a) 5 + (3 + 2) = __________________
b) 10 – (4 + 1) = __________________
c) 8 + (6 – 2) = __________________
H. Tinkering with Terms – 2 (Rearranging)
17. Rearrange and simplify:
a) 3 + 5 + 2 = __________________
b) 7 + (-3) + 6 = __________________
c) 10 – 4 + 2 = __________________
Fun Activity Section
18. Number Hunt
Find and write:
- 5 large numbers from newspapers (6–9 digits)
- Write their number names
- Round them to nearest lakh
19. Expression Puzzle
Create 3 arithmetic expressions using +, –, × and brackets.
Example: (5 + 3) × 2
Write in notebook.
Mental Maths Challenge
20. Solve quickly:
a) 999 + 1 = ______
b) 1 crore = ______ lakh
c) -10 + 10 = ______
d) 50 × 20 = ______
e) 1000 – 1 = ______
Creative Corner
21. Make a chart on ANY ONE:
- Place value of Crores
- Integer operations in real life
- Large number system
- Rules of brackets