Preparing for a Maths Olympiad, school entrance exam, or mental ability test requires strong fundamentals in addition, number patterns, tables, logical reasoning, word problems, and critical thinking. This practice worksheet is specially designed for students preparing for Olympiad exams, NTSE foundation, scholarship tests, CBSE maths practice, and primary aptitude competitions.
These carefully designed Class 4 Maths Olympiad questions help students improve:
- Mental maths skills
- Logical reasoning
- Roman numerals
- Place value concepts
- Number system understanding
- Critical thinking
- Fast calculations
- Problem-solving ability
This worksheet is ideal for:
- IMO Maths Olympiad preparation
- CBSE Class 4 maths practice
- Scholarship exam preparation
- Mental ability tests
- School maths competitions
- Primary aptitude exams
Class 4 Maths Olympiad Practice Questions
Place Value & Number System
1.
99,999 is the greatest ______ digit number.
(a) 3
(b) 4
(c) 5
(d) 6
2.
Place value of 7 in 4,57,321 is:
(a) 7
(b) 70
(c) 700
(d) 7000
3.
Smallest 6-digit number is:
(a) 10,000
(b) 99,999
(c) 1,00,000
(d) 1,11,111
4.
4,00,000 + 20,000 + 5,000 + 400 + 20 + 3 = ?
(a) 4,25,423
(b) 4,25,432
(c) 4,52,423
(d) 4,52,432
5.
The ones period includes:
(a) Ones, Tens, Hundreds
(b) Thousands
(c) Lakhs
(d) Ten Lakhs
6.
Lakhs period includes:
(a) Lakhs and Ten Lakhs
(b) Ones and Tens
(c) Hundreds only
(d) Thousands only
7.
Which separator is used to separate periods in numbers?
(a) Full stop
(b) Hyphen
(c) Comma
(d) Slash
8.
5,43,210 is a ______ digit number.
(a) 4
(b) 5
(c) 6
(d) 7
9.
Ten lakhs equals:
(a) 1,00,000
(b) 10,00,000
(c) 1,000
(d) 10,000
10.
Which is the odd one out?
(a) Hundreds
(b) Tens
(c) Ones
(d) Lakhs
Mental Mathematics
11.
345 + 456 = ?
(a) 791
(b) 801
(c) 811
(d) 821
12.
999 + 1 = ?
(a) 100
(b) 1000
(c) 1001
(d) 9999
13.
765 − 245 = ?
(a) 510
(b) 520
(c) 530
(d) 540
14.
125 × 4 = ?
(a) 400
(b) 450
(c) 500
(d) 550
15.
840 ÷ 7 = ?
(a) 110
(b) 120
(c) 130
(d) 140
Number Patterns
16.
Complete the pattern:
5, 10, 15, 20, ___
(a) 22
(b) 23
(c) 25
(d) 30
17.
Find the next number:
100, 200, 300, 400, ___
(a) 450
(b) 500
(c) 550
(d) 600
18.
Which numbers complete the pattern?
___ + 6 = 9
___ + 60 = 90
___ + 600 = 900
(a) 3, 30, 300
(b) 4, 40, 400
(c) 5, 50, 500
(d) 6, 60, 600
19.
Find the missing number:
2, 4, 8, 16, ___
(a) 18
(b) 24
(c) 32
(d) 36
20.
What comes next?
7, 14, 21, 28, ___
(a) 30
(b) 35
(c) 42
(d) 49
Logical Reasoning & Critical Thinking
21.
Addition of two even numbers is always:
(a) Odd
(b) Even
(c) Prime
(d) Zero
22.
According to additive property of zero:
(a) 45 + 0 = 45
(b) 45 + 0 = 0
(c) 0 + 0 = 1
(d) 10 + 0 = 1
23.
Which statement is correct?
(a) 25 + 15 = 30
(b) 50 + 50 = 100
(c) 60 + 20 = 70
(d) 10 + 15 = 20
24.
Choose the incorrect option:
(a) 20 + 30 = 25 + 25
(b) 40 + 20 = 30 + 30
(c) 15 + 15 = 20 + 10
(d) 50 + 10 = 40 + 20
25.
According to commutative property:
(a) 15 + 25 = 25 + 15
(b) 10 + 20 = 20 + 40
(c) 30 + 10 = 20 + 10
(d) 12 + 12 = 10 + 10
Roman Numerals
26.
Write 49 in Roman numerals.
(a) XLIX
(b) LIX
(c) XXXXIX
(d) IL
27.
Roman numeral for 1000 is:
(a) C
(b) D
(c) M
(d) X
28.
Convert CVI into Hindu-Arabic numeral.
(a) 104
(b) 105
(c) 106
(d) 110
29.
Write 630 in Roman numerals.
(a) DCXXX
(b) DXXX
(c) DCXX
(d) DCCXXX
30.
Convert 1400 into Roman numerals.
(a) MC
(b) MD
(c) MCD
(d) CDM
31.
What is MXVI equal to?
(a) 1006
(b) 1016
(c) 1106
(d) 1116
32.
Roman numeral for 3010 is:
(a) MMX
(b) MMMX
(c) MX
(d) MMM
33.
Which Roman numeral is meaningless?
(a) XC
(b) L
(c) IXXX
(d) XXIX
34.
Write 737 in Roman numerals.
(a) DCCXXXVII
(b) DCXXXVII
(c) DCCXXVII
(d) DCCCXXXVII
35.
Which is an incorrect match?
(a) XLVIII = 48
(b) LX = 60
(c) XCIV = 94
(d) CD = 600
Word Problems
36.
Rohan has 245 marbles and Aman has 178 marbles. How many marbles do they have together?
(a) 413
(b) 423
(c) 433
(d) 443
37.
A school bought 345 notebooks and 255 pencils. Total items bought?
(a) 590
(b) 600
(c) 610
(d) 620
38.
A bus travelled 235 km on Monday and 165 km on Tuesday. Total distance travelled?
(a) 390 km
(b) 400 km
(c) 410 km
(d) 420 km
39.
A toy shop sold 123 dolls and 177 toy cars. Total toys sold?
(a) 280
(b) 290
(c) 300
(d) 310
40.
Meera read 145 pages on Saturday and 155 pages on Sunday. How many pages did she read in total?
(a) 280
(b) 290
(c) 300
(d) 310
Table & Rule Based Questions
41.
Input → Output
345 → 355
567 → 577
789 → 799
What is the rule?
(a) Add 5
(b) Add 10
(c) Add 12
(d) Add 15
42.
Input → Output
200 → 220
350 → 370
410 → 430
What is the rule?
(a) Add 10
(b) Add 15
(c) Add 20
(d) Add 25
43.
Fill in the blank:
Rule = Add 25
145 → ___
(a) 160
(b) 165
(c) 170
(d) 175
44.
Rule = Add 40
250 → ___
(a) 280
(b) 290
(c) 300
(d) 310
45.
Rule = Add 18
120 → ___
(a) 128
(b) 138
(c) 148
(d) 158
Mixed Olympiad Questions
46.
Which pair gives the greatest sum?
(a) 120 + 230
(b) 450 + 300
(c) 500 + 200
(d) 350 + 340
47.
Find the missing number:
650 + ___ = 900
(a) 150
(b) 200
(c) 250
(d) 300
48.
What is the sum of the greatest 2-digit number and the smallest 3-digit number?
(a) 189
(b) 199
(c) 209
(d) 299
49.
How many hundreds are there in 3,44,567?
(a) 3
(b) 4
(c) 5
(d) 6
50.
Choose the correct statement:
(a) Roman numerals use place value
(b) Roman numerals do not use place value
(c) Roman numerals use decimals
(d) Roman numerals use commas
Conclusion
Practicing Maths Olympiad questions for Class 4 helps students improve their:
- Numerical ability
- Mental calculation speed
- Logical reasoning
- Problem-solving skills
- Confidence in competitive exams
These Grade 4 Maths Olympiad practice questions are excellent for students preparing for:
- IMO Olympiad
- CBSE maths competitions
- Scholarship exams
- Mental aptitude tests
- School entrance exams
Daily practice can greatly improve speed, accuracy, and confidence in mathematics.
