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Class 3 Mathematics – 100 Basic Questions with Answers (All Types) For practice. A. Addition (1–10) 1. 24 + 15 = 39 2. 36 + 28 = 64 3. 47 + 12 = 59 4. 58 + 19 = 77 5. 65 + 24 = 89 6. 82 + 17 = 99 7. 49 + 31 = 80 8. 26 + 43 = 69 9. 54 + 36 = 90 10. 71 + 18 = 89 B. Subtraction (11–20) 11. 45 − 16 = 29 12. 83 − 29 = 54 13. 70 − 25 = 45 14. 91 − 37 = 54 15. 68 − 19 = 49 16. 100 − 48 = 52 17. 56 − 28 = 28 18. 74 − 35 = 39 19. 80 − 44 = 36 20. 63 − 27 = 36 C. Multiplication (21–30) 21. 4 × 8 = 32 22. 7 × 6 = 42 23. 9 × 5 = 45 24. 3 × 12 = 36 25. 8 × 7 = 56 26. 11 × 4 = 44 27. 10 × 9 = 90 28. 5 × 5 = 25 29. 2 × 11 = 22 30. 6 × 9 = 54 D. Division (31–40) 31. 48 ÷ 6 = 8 32. 54 ÷ 9 = 6 33. 42 ÷ 7 = 6 34. 81 ÷ 9 = 9 35. 35 ÷ 5 = 7 36. 64 ÷ 8 = 8 37. 27 ÷ 3 = 9 38. 72 ÷ 8 = 9 39. 18 ÷ 6 = 3 40. 49 ÷ 7 = 7 E. Fill in the Blanks (41–50) 41. 35 + ___ = 60 → 25 42. ___ + 18 = 45 → 27 43. 90 − ___ = 55 → 35 44. ___ − 14 = 36 → 50 45. 8 × ___ = 56 → 7 46. ___ × 9 = 45 → 5 47. 54 ÷ ___ = 6 → 9 48. ___ ÷ ...

Unit Conversion Quiz (50 Questions) Unit Conversion Quiz (50 Questions) Score: 0 / 50 # Question Your Answer Check Score Reset

Maths Ordering of numbers Ascending Order Arrange in ascending order: 34, 12, 56, 9 Answer: 9, 12, 34, 56 Arrange in ascending order: 78, 45, 90, 11 Answer: 11, 45, 78, 90 Arrange in ascending order: 120, 102, 210, 201 Answer: 102, 120, 201, 210 Arrange in ascending order: 5, 15, 10, 20 Answer: 5, 10, 15, 20 Arrange in ascending order: 300, 30, 3, 33 Answer: 3, 30, 33, 300 Descending Order Arrange in descending order: 45, 22, 89, 10 Answer: 89, 45, 22, 10 Arrange in descending order: 150, 105, 501, 510 Answer: 510, 501, 150, 105 Arrange in descending order: 9, 19, 29, 39 Answer: 39, 29, 19, 9 Arrange in descending order: 400, 40, 404, 44 Answer: 404, 400, 44, 40 Arrange in descending order: 72, 27, 92, 29 Answer: 92, 72, 29, 27 Make Greatest Number Make the greatest 3-digit number using digits 4, 7, 2 Answer: 742 Make the greatest 4-digit number using 1, 9, 3, 5 Answer: 9531 Make the greatest number using 0, 8, 6 Answer...

Maths What is 14 + 9? Answer: 23 Subtract: 32 − 18 Answer: 14 7 × 9 = ? Answer: 63 81 ÷ 9 = ? Answer: 9 Write the number name of 100. Answer: One hundred What is the place value of 3 in 345? Answer: 300 Arrange in ascending order: 45, 12, 78, 20 Answer: 12, 20, 45, 78 2/3 + 1/3 = ? Answer: 1 5/10 = ? (Simplest form) Answer: 1/2 Convert 3 hours into minutes. Answer: 180 minutes Geometry How many sides does a hexagon have? Answer: 6 How many edges does a cube have? Answer: 12 A square has how many right angles? Answer: 4 What is the name of a 3D shape like a ball? Answer: Sphere How many vertices does a triangle have? Answer: 3 A straight angle measures how many degrees? Answer: 180° How many lines of symmetry does a rectangle have? Answer: 2 Name the shape with 5 sides. Answer: Pentagon Area of square with side 6 cm? Answer: 36 sq cm Perimeter of rectangle (length 10 cm, breadth 4 cm)? ...

Class6 Section A: Multiple Choice Questions (Answers Ticked) The smallest prime number is: a) 0 b) 1 ✔ c) 2 d) 3 LCM of 12 and 15 is: ✔ a) 60 b) 30 c) 45 d) 90 HCF of 18 and 24 is: a) 12 ✔ b) 6 c) 3 d) 9 5.25 as a fraction is: ✔ a) 21/4 b) 5/25 c) 52/5 d) 25/5 0.75 × 10 = ✔ a) 7.5 b) 75 c) 0.075 d) 750 The perimeter of a square of side 6 cm is: a) 12 cm ✔ b) 24 cm c) 36 cm d) 18 cm A triangle with all sides equal is called: a) Scalene b) Isosceles ✔ c) Equilateral d) Right A line that divides a circle into two equal parts is: a) Radius ✔ b) Diameter c) Chord d) Arc The value of 7² is: a) 14 ✔ b) 49 c) 21 d) 77 The place value of 5 in 45,678 is: ✔ a) 5,000 b) 50 c) 500 d) 5 3/4 + 2/4 = a) 5/8 ✔ b) 5/4 c) 1 d) 6/4 2.5 + 3.75 = ✔ a) 6.25 b) 5.25 c) 6.5 d) 5.5 A rectangle has length 8 cm and breadth 5 cm. Its area is: a) 13 sq cm ✔ b) 40 sq cm c) 26 sq cm d) 80 sq cm Roman numeral for 50 is: ✔ a)...

Congruence - Classes 6 to 10 Congruence (Classes 6–10) Meaning of Congruence Two figures are congruent if they have the same shape and the same size. Symbol used: ≅ If △ABC ≅ △DEF, then: AB = DE BC = EF AC = DF Corresponding angles are equal Rules (Criteria) of Congruence 1. SSS (Side–Side–Side) If three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent. 2. SAS (Side–Angle–Side) If two sides and the included angle are equal, then triangles are congruent. 3. ASA (Angle–Side–Angle) If two angles and the included side are equal, then triangles are congruent. 4. AAS (Angle–Angle–Side) If two angles and one corresponding side are equal, then triangles are congruent. 5. RHS (Right angle–Hypotenuse–Side) In right-angled triangles, if the hypotenuse and one side are equal, then triangles are congruent. 20 Questions with Step-by-Step Answers Q1. Triangles with sides 5 cm, 6 cm, 7 cm and 5 ...

Powers of Numbers - Mathematical Formulas Mathematical Formulas on Powers of Numbers 1. Basic Definition of Power a n = a × a × a × ... (n times) Example: 2 4 = 2 × 2 × 2 × 2 = 16 2. Laws of Exponents Product Rule (Same Base) a m × a n = a m+n Example: 3 2 × 3 4 = 3 6 Quotient Rule (Same Base) a m / a n = a m−n (a ≠ 0) Example: 5 7 / 5 3 = 5 4 Power of a Power (a m ) n = a mn Example: (2 3 ) 4 = 2 12 Power of a Product (ab) n = a n b n Example: (3 × 4) 2 = 3 2 × 4 2 Power of a Quotient (a / b) n = a n / b n (b ≠ 0) 3. Special Exponent Rules Zero Power Rule a 0 = 1 (a ≠ 0) Negative Exponent Rule a −n = 1 / a n (a ≠ 0) Example: 2 −3 = 1 / 2 3 = 1/8 Fractional Exponents a 1/n = √[n]a a m/n = √[n](a m ) Example: 8 1/3 = ∛8 = 2 4. Important Identities 1 n = 1 0 n = 0 (n > 0)

Congruence in geometry just means that two shapes are identical twins . They are the exact same size and the exact same shape. If you picked one up and placed it on top of the other, they would match perfectly. The 5 Ways to Prove Triangles are Congruent To prove two triangles are identical, you don't need to measure every single side and angle. You only need three specific pieces of information: SAS: Side - Angle - Side (The angle must be between the sides). ASA: Angle - Side - Angle (The side must be between the angles). AAS: Angle - Angle - Side. SSS: Side - Side - Side (All three sides match). RHS: Right angle - Hypotenuse - Side. 1. The Side-Angle-Side (SAS) Rule Q: If AB = PQ , BC = QR , and the angle between them ( angle B = angle Q ) is the same, are the triangles congruent? Step 1: Look at what we have: Two sides match, and the "corner" (angle) between them matches. Step 2: This fits the SAS rule perfectly. Conclusion: Yes, they are congruent. 2. The Is...

Calculate work time and work force. Question 1 English: 20 workers can complete a piece of work in 15 days. If 5 more workers are added, how many days will it take to complete the same work? Hindi: 20 मजदूर 15 दिनों में एक काम पूरा कर सकते हैं। यदि 5 मजदूर और जोड़ दिए जाएँ, तो वही काम कितने दिनों में पूरा होगा? Solution / Explanation Work = Workers × Days Total work = 20 × 15 = 300 worker-days New number of workers = 20 + 5 = 25 Required days = 300 ÷ 25 = 12 days Answer: 👉 12 days उत्तर: 👉 12 दिन Question 2 English: A group of 12 workers can finish a job in 18 days. If the work must be completed in 12 days, how many additional workers are required? Hindi: 12 मजदूर एक काम 18 दिनों में पूरा करते हैं। यदि काम 12 दिनों में पूरा करना हो, तो कितने अतिरिक्त मजदूर चाहिए? Solution / Explanation Total work = 12 × 18 = 216 worker-days Workers needed for 12 days = 216 ÷ 12 = 18 workers Additional workers = 18 − 12 = 6 Answer: 👉 6 additional workers उत्तर: 👉 6 अतिरिक...

50 NCERT Class 3 Maths questions with solutions Chapter 1: Where to Look From Q1. How many corners does a square have? (एक वर्ग के कितने कोने होते हैं?) Solution (English): A square has 4 sides and 4 corners. 👉 Answer: 4 corners Q2. Name one object in your classroom that looks like a cube. (कक्षा में एक ऐसी वस्तु बताइए जो घन जैसी दिखती हो।) Solution (English): A dice looks like a cube because all sides are equal. 👉 Answer: Dice Q3. How many sides does a triangle have? (त्रिभुज की कितनी भुजाएँ होती हैं?) Solution (English): A triangle has 3 sides. 👉 Answer: 3 sides Q4. Which shape looks like a ball? (कौन-सी आकृति गेंद जैसी होती है?) Solution (English): A ball looks like a sphere. 👉 Answer: Sphere Q5. Draw a rectangle and a circle. (एक आयत और एक वृत्त बनाइए।) Solution (English): A rectangle has 4 sides. A circle is round with no corners. 👉 Drawing activity Chapter 2: Fun with Numbers Q6. Write the number name of 345. (345 का संख्या नाम लिखिए।) Solution (English): 345 = T...

10 percentage questions with solutions. 1. Find 25% of 200. Solution: 25% of 200  = (25/100) x 200 = 50 Explanation: Percentage means “per hundred.” So we multiply the number by the given percentage and divide by 100. 2. Find 10% of 350. Solution: 10% of 350 = = (10/100) X 350   = 35 Explanation: 10% means one-tenth of a quantity. 3. Find 15% of 80. Solution: 15% of 80 = = (15/100) X 80   = 12 Explanation: Convert the percentage into a fraction and multiply. 4. What percentage of 50 is 20? Solution: Percentage = (x/100) x 50 = 20 X = (20/50) x 100 = 40% Explanation: Divide the part by the whole and multiply by 100. 5. What percentage of 400 is 60? Solution: Percentage = (60/400) x 100 = 15% Explanation: This shows how much 60 is out of 400. 6. A student scored 45 marks out of 60. Find the percentage of marks obtained. Solution: Percentage = (45/60) x 100 = 75% Explanation: Marks obtained ÷ Total marks × 100 gives the percentage...

Maths : Ratio 1. Write the ratio of 3 apples to 5 apples. Answer: 3 : 5 Explanation: Ratio compares quantities of the same type. So, apples to apples = 3 : 5. 2. Express the ratio 12 : 18 in its simplest form. Answer: 2 : 3 Explanation: Find the HCF of 12 and 18, which is 6. Divide both terms by 6: 12 ÷ 6 = 2, 18 ÷ 6 = 3 So the simplest form is 2 : 3. 3. The ratio of boys to girls in a class is 4 : 5. If there are 20 boys, how many girls are there? Answer: 25 girls Explanation: 4 parts = 20 boys 1 part = 20 ÷ 4 = 5 Girls = 5 parts = 5 × 5 = 25 4. Divide ₹120 in the ratio 2 : 3. Answer: ₹48 and ₹72 Explanation: Total parts = 2 + 3 = 5 Value of 1 part = 120 ÷ 5 = 24 First share = 2 × 24 = ₹48 Second share = 3 × 24 = ₹72 5. The ratio of red balls to blue balls is 7 : 9. If there are 63 red balls, find the number of blue balls. Answer: 81 blue balls Explanation: 7 parts = 63 1 part = 63 ÷ 7 = 9 Blue balls = 9 parts = 9 × 9 = 81 6. The ratio of length to breadth of a rectangle is 5 : 3. If ...

Forming Algebraic Expressions Instructions Let the unknown number be represented by x (and y where required). Read each statement carefully and write the correct algebraic expression. Each question includes its expression and a short explanation for better understanding. Section A: Basic Questions 1. Statement: Ramesh has some pencils and buys 6 more. Expression: x + 6 Explanation: Buying more means adding 6 to the number. 2. Statement: A number is multiplied by 9. Expression: 9x Explanation: Multiplying by 9 gives . 3. Statement: A number is decreased by 11. Expression: x - 11 Explanation: “Decreased” means subtract. 4. Statement: The length of a rectangle is 5 cm more than its breadth . Expression: length = breadth + 5 Explanation: “More than” means addition. 5. Statement: The cost of one notebook is 40 ₹. Find the cost of 8 notebooks. Expression: 40 x 8 = 320 ₹ Explanation: Cost is multiplied by 8. 6. Statement: Half of a number is increased by ...

1. Mean (Average) Definition The mean is the average of a group of numbers. Formula Mean = Sum of all observations ÷ Number of observations Explanation To find the mean, add all the values and divide the total by how many values are there. Example 1 Find the mean of: 4, 6, 8, 10 Solution: Sum = 4 + 6 + 8 + 10 = 28 Number of values = 4 Mean = 28 ÷ 4 = 7 Answer: Mean = 7 Example 2 Find the mean of: 12, 15, 18, 10, 5 Solution: Sum = 60 Number of values = 5 Mean = 60 ÷ 5 = 12 Answer: Mean = 12 Real-Life Uses of Mean Average marks of a student Average temperature of a week Average salary in an office Average runs of a cricket player 2. Median Definition The median is the middle value when the data is arranged in order. Steps to Find Median Arrange the data in ascending order Find the middle value Odd number of values → middle one Even number of values → average of two middle values Example 1 Find the median of: 5, 2, 9, 1, 7 Solution: Ord...

What is Percentage? The word percentage means “per hundred” . It is used to compare quantities by converting them into fractions of 100. The symbol for percentage is % . 👉 Example: 50% means 50 out of 100 or 50/100 . Important Points to Remember Percentage always has 100 as the denominator To convert a fraction into percentage → multiply by 100 To convert a percentage into fraction → divide by 100 Percentages are widely used in marks, discounts, profit & loss, population, and statistics. Question 1 Find the percentage of 25 out of 100 . Solution: 25/100 x 100 =1/4 x 100 = 100/4 = 25 Answer: 25% Question 2 Find the percentage of 20 out of 50 . Solution: 20/50 x 100 = 2/5 x 100 = 200/5 = 40 Answer: 40% Question 3 A student scored 45 marks out of 60 . Find the percentage. Solution: 45/60 x 100 = 3/4 x 100 = 300/4 = 75 Answer: 75% Question 4 Convert 3/5 into percentage. Solution: 3/5 x 100 = 300/5 = 60 Answer: 60% Question 5 Convert 0.25 ...

Measurement Conversion Quiz Measurement Conversion Test – Auto Check Quiz Section A – Length Conversion 1. 5 m = cm 2. 320 cm = m 3. 7 km = m 4. 2500 m = km Section B – Weight (Mass) Conversion 5. 4000 g = kg 6. 6 kg = g 7. 250 g = mg 8. 3000 mg = g Section C – Capacity / Liquid Measurement 9. 5 L = mL 10. 1500 mL = L 11. 2.5 L = mL 12. 750 mL = L Section D – Solid / Volume Measurement 13. 8000 cm³ = L 14. 3 L = cm³ 15. 2 m³ = L 16. 12,000 mL = L Section E – Gas Measurement 17. 4 L = mL 18. 2500 mL = L Section F – Money Conversion 19. ₹5.75 = paise 20. 630 paise = rupees 21. ₹12.50 = paise 22. 850 paise = rupees Section G – Dozen, Pair, Score 23. 3 dozen = items 24. 6 pairs = items 25. 2 score = items Section H – 24-hour → 12-hour 26. 13:45 = 27. 00:20 = 28. 21:10 = 29. 07:55 = Section I – 12-hour → 24-hour 30. 9:15 PM = 31. 12:40 AM = 32. 3:50 PM = 33. 11:05 AM = Section J – Words t...