Question

Q1. Choose the correct option:- 5

i) The unit digit of the square of 1234 is______

a) 4 b) 6 c) 8 d) 2

ii) The prime number has exactly______ divisors.

a) 1 b) 6 c) 2 d) 2

iii) (−42)

2 = _____

a) -1764 b) 1762 c) 1764 d) -1762

iv) The number of zeros in the square of 1400 is _____

a) 4 b) 2 c) 6 d) 5

v) There are_____ numbers lie between square of n and n+1.

a) n b) n

2

c) 2n d) (n+1)2

Section-B

Each Question Carries One Mark:-

Q2. Which of the following numbers would have digit 6 at unit place?

i) 192

ii) 242

iii) 252

iv) 362

Q3. Without adding, find the sum of the following:-

1+3+5+7+9+11+13+15+17+19

Q4. Find the square of 38 without actual multiplication.

Q5. How many numbers lie between squares of 99 and 100?

Q6. Write four rational numbers between 0 and 4.

Q7. The squares of which of following numbers would be even numbers:-

i) 2024 ii) 3741 iii) 84361 iv) 54558​

Answer 1

Answer:

1.4

2.2

3.-1764

4.Two

5.(n+1)2

Answer:

1.362

2.100

3.8

4.1

5.-1,-2,-3,-4

6.2024 54558

Step-by-step explanation:

hope it will help u pls mark as brainliest:))

Answer 2

Answer:

i 6

ii 1

iii -1764

iv 4

v 2n

2Answer:

1.362

2.100

3.8

4.1

5.-1,-2,-3,-4

6.2024 54558