Answer all the questions.

1) Fill in the blanks:

(1 × 5 = 5)

1. The place value of 5 in the number 11,52,241 is _____.
2. The volume of a cube of side 1 cm is _____.
3. A number which has only two factors is called a ______ number.
4. An angle which is less than 90° is called an _____ angle.
5. 1 crore = ____ lakhs.

2) Answer the following:

(1 × 4 = 4)

1. Write 2/10 as decimal.
2. What part of the day is 6 hours?
3. Is the fraction 7/9 equivalent to the fraction 21/27 ?
4. Write a prime number which is an even number also.

3) Choose the correct answer:

(1 × 5 = 5)

1. ____ multiplied by 3/9 is 3.

   i) 9	ii) 3
   iii) 1	iv) 0

    
2. The space occupied by an object is called its _____.

   i) Area	ii) Perimeter
   iii) Volume	iv) Capacity

    
3. Half of a right angle is:

   i) 180°	ii) 360°
   iii) 90°	iv) 45°

    
4. A ____ has more than 50 lines of symmetry.

   i) circle	ii) equilateral triangle
   iii) rectangle	iv) square

    
5. One-tenth of a centimetre is called a _____.

   i) metre	ii) kilometre
   iii) millimetre	iv) centimetre

    

4) Match the following:

(1 × 4 = 4)

a)Rs 5 and 10 paise	i) cubic unit
b) Volume	ii) Rs 5.10
c) Area	iii) 1.86 L
d) 1860 mL	iv) square unit

5) Write the numbers in words:

(1 × 2 = 2)

6) Convert the decimal to fractions:

(1 × 2 = 2)

7) Add the following:

(1 × 2 = 2)

8) Write the correct name of the three-dimensional shapes for the given nets:

(1 × 2 = 2)

1. 
2. 

9) Solve the following:

(2 × 5 = 10)

1. The length of fencing of a square field is 50 m. Find the side of the square?
2. Write the first ten multiples of 14.
3. Find the volume of the cuboid of length 4 cm, breadth 6 cm, and height 12 cm.
4. If 3 cm on a map shows 42.12 km on the ground, then how long 13 cm on the map will shows on the ground?
5. Find the smallest common multiple of 16 and 84.

10) Divide 2457 by 4 and write the quotient and remainder

(2 × 1 = 2)

11) Draw a factor tree of number 40.

(2 × 1 = 2)

12) Write the following numbers in the expanded form.

(1 × 2 = 2)

1. 165.41
2. 15.08

13) Identify the angle in the given figure as acute or obtuse angle.

(1 × 2 = 2)

1. 
2. 

14) Find the factors of 24, 18 and 62 and then answer the following question

(1 + 1 + 1 = 3)

1. What are the common factors of 24 and 18.
2. What is the largest common factor of all the numbers.

15) Each small square in the given figure is of side 2 cm.

(3 × 1 = 3)

Calculate the area and the perimeter of rectangle ABCD and also calculate the area of the triangle DEF.