Bank Exam Practice Material Series Page 4 | Approximation Practice Set with Answers & Fast Calculation Tricks

 

 Bank Exam Practice Material Series – Page 4

Approximation Practice Set with Answers & Fast Calculation Tricks

Shaktimatha Learning – Bank Exam Practice Hub
Learn Approximation shortcut tricks, rounding methods, mental maths techniques, and fast aptitude solving methods for Bank Exams, SSC, Railways, Insurance, and Competitive Exams.

 Importance of Approximation in Bank Exams

Approximation is one of the fastest scoring topics in:

• Bank Exams
• SSC
• Insurance Exams
• Railway Exams

This section tests:

• Fast calculation ability
• Mental maths speed
• Observation skills
• Simplification accuracy

🎯 What is Approximation?

Approximation means:

• Simplifying calculations
• Using nearby values
• Solving quickly without exact calculations

This helps save valuable exam time.

 Approximation Formula Concept

0

 Important Approximation Tricks

Original Number	Approximate Value
49	50
98	100
199	200
1001	1000
9.8	10

 Approximation Practice Questions

Q1. 49 × 21 ≈ ?

Solution:

49 ≈ 50
21 ≈ 20

50 × 20

✅ Answer ≈ 1000

Q2. 198 + 301 ≈ ?

Solution:

198 ≈ 200
301 ≈ 300

200 + 300

✅ Answer ≈ 500

Q3. 999 ÷ 9 ≈ ?

Solution:

999 ≈ 1000

1000 ÷ 10

✅ Answer ≈ 100

Q4. 52 × 48 ≈ ?

Solution:

52 ≈ 50
48 ≈ 50

50 × 50

✅ Answer ≈ 2500

Q5. 401 − 198 ≈ ?

Solution:

401 ≈ 400
198 ≈ 200

400 − 200

✅ Answer ≈ 200

Q6. 78 × 11 ≈ ?

Solution:

78 ≈ 80
11 ≈ 10

80 × 10

✅ Answer ≈ 800

Q7. 1002 + 998 ≈ ?

Solution:

1002 ≈ 1000
998 ≈ 1000

1000 + 1000

✅ Answer ≈ 2000

Q8. 248 ÷ 5 ≈ ?

Solution:

248 ≈ 250

250 ÷ 5

✅ Answer ≈ 50

Q9. 19² ≈ ?

Solution:

19 ≈ 20

20²

1

✅ Answer ≈ 400

Q10. 89 + 111 ≈ ?

Solution:

89 ≈ 90
111 ≈ 110

90 + 110

✅ Answer ≈ 200

 Fast Observation Tricks

Important Methods:

• Round numbers quickly
• Use nearby tens/hundreds
• Ignore small decimal differences
• Focus on speed over exact values

📖 Common Approximation Values

Actual	Approximate
9.9	10
49	50
97	100
501	500
999	1000

🎯 Daily Practice Strategy

• Practice rounded multiplication
• Practice rounded division
• Revise approximate percentages
• Practice fast simplification

This improves:

• Calculation speed
• Mental maths ability
• Competitive exam confidence

“Approximation Techniques Help Solve Difficult Calculations Within Seconds.”

Powered by Shaktimatha Learning
Bank Exam Practice Material Series