# Mental Maths Worksheet for Class 3

Additionally, Grade 3 Mental Math worksheet can improve students' critical thinking and problem-solving skills. This worksheet challenges students to work out mathematical problems using mental arithmetic, which is an essential skill in real-life situations. With regular practice, students can learn to calculate basic math operations, such as addition, subtraction, multiplication, and division, without relying on a calculator or paper.

Moreover, Mental Math worksheet can help students in developing their mental agility and improve their memory skills. By solving problems mentally, students need to recall mathematical formulas and concepts, which can help strengthen their memory.

Overall, Grade 3 Mental Math worksheet is a useful tool for students to improve their math skills, develop critical thinking and problem-solving abilities, and enhance their memory retention. By making mental math a regular part of their learning routine, students can strengthen their foundation in mathematics and be better prepared for future academic challenges.

## Mental Maths Worksheet for Class 3

1. What is the sum of 9 and 5?

a) 14
b) 15
c) 16
d) 17

Explanation: 9 + 5 = 14

2. Subtract 8 from 20.

a) 12
b) 13
c) 14
d) 15

Explanation: 20 - 8 = 12

3. Multiply 7 and 5.

a) 35
b) 36
c) 37
d) 38

Explanation: 7 x 5 = 35

4. Divide 50 by 5.

a) 5
b) 6
c) 10
d) 11

Explanation: 50 ÷ 5 = 10

5. What is the square of 9?

a) 81
b) 82
c) 83
d) 84

Explanation: 92 = 81

6. What is the cube of 3?

a) 27
b) 28
c) 29
d) 30

Explanation: 33 = 27

7. Add 7 and 9, then multiply the result by 2.

a) 32
b) 33
c) 34
d) 35

Explanation: (7 + 9) x 2 = 16 x 2 = 32

8. Divide 100 by 10, then add 5 to the result.

a) 15
b) 16
c) 17
d) 18

Explanation: (100 ÷ 10) + 5 = 10 + 5 = 15

9. Multiply 5 by 6, then subtract 10 from the result.

a) 20
b) 21
c) 22
d) 23

Explanation: (5 x 6) - 10 = 30 - 10 = 20

10. Divide 100 by 5, then multiply the result by 4.

a) 80
b) 81
c) 82
d) 83

Explanation: (100 ÷ 5) x 4 = 20 x 4 = 80

11. Which shape has 4 sides and 4 angles that are equal in measurement?

a) Square
b) Triangle
c) Circle
d) Rectangle

12. How many minutes are there in an hour?

a) 50 minutes
b) 60 minutes
c) 70 minutes
d) 80 minutes

13. What is the next number in the series 5, 10, 15, 20, 25?

a) 30
b) 35
c) 40
d) 45

14. If I have 4 apples and add 2 more, how many apples will I have in total?

a) 6 apples
b) 15 apples
c) 20 apples
d) 25 apples

15. What is the formula for finding the area of a triangle?

a) (base x height) / 2
b) (base x height) x 2
c) base x height
d) base / height

Answer: a) (base x height) / 2

16. How many sides does a hexagon have?

a) 4
b) 5
c) 6
d) 7

17. What is the value of 3 x 4?

a) 7
b) 10
c) 12
d) 15

18. If I have 10 pencils and I lose 3, how many pencils will I have left?

a) 7 pencils
b) 24 pencils
c) 20 pencils
d) 18 pencils

19. What is the formula for finding the circumference of a circle?

a) 2πr
b) πr
c) πr2
d) 2r

20. What is the next number in the series 2, 4, 8, 16, 32?

a) 64
b) 40
c) 50
d) 60

### Solve!!!

1. What is the perimeter of a square with side length 4 cm?

a) 16 cm
b) 8 cm
c) 12 cm
d) 10 cm

2. How many sides does a triangle have?

a) 4
b) 3
c) 2
d) 5

3. What is the shape of a bangle?

a) Rectangle
b) Square
c) Circle
d) Triangle

4. What is the next number in the series: 1, 2, 4, 7, 11?

a) 16
b) 15
c) 18
d) 13

5. What is the area of a rectangle with length 4 cm and width 3 cm?

a) 12 cm
b) 14 cm
c) 15 cm
d) 13 cm

6. What is the sum of 1 + 2 + 3 + 4 + 5?

a) 15
b) 12
c) 10
d) 13

7. What is the half of 20?

a) 10
b) 5
c) 15
d) 20

8. What is the perimeter of a rectangle with length 5 cm and width 3 cm?

a) 16 cm
b) 14 cm
c) 18 cm
d) 15 cm

9. What is the next number in the series: 5, 8, 11, 14, 17?

a) 20
b) 22
c) 21
d) 19

10. If I have 5 notebooks and I take away 2, how many notebooks will I have left?

a) 3 notebooks
b) 8 notebooks
c) 9 notebooks
d) 4 notebooks

1. a) 16 cm
2. b) 3
3. c) Circle
4. a) 16
5. a) 12 cm2
6. a) 15
7. a) 10
8. c) 16 cm
9. a) 20
10. a) 3 notebooks

## Mental Maths Worksheet PDF for Class 3

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