CBSE Class 8 Mathematics We Distribute Yet Things Multiply MCQs Set E

Question. Difference between diagonal products 55 and 48 in calendar is.
(a) 1
(b) 7
(c) 14
(d) 0

Answer: B

Question. x(x + 2y) minus 3xy simplifies to.
(a) x square - xy
(b) x square + xy
(c) 2x
(d) 3y

Answer: A

Question. Area of square with sidelength 55 is.
(a) 3000
(b) 3025
(c) 3600
(d) 2500

Answer: B

Question. For dcba times 101, we do dcba times 100 plus dcba.
(a) plus dcba
(b) minus dcba
(c) divide dcba
(d) times 10

Answer: A

Question. Squares of odd numbers are 1 more than multiples of.
(a) 2
(b) 4
(c) 8
(d) 10

Answer: C

Question. Which of the following is equivalent to a² = (a + b)(a – b) + b²?
(a) (a + b)²
(b) (a – b)²
(c) a² – b² = (a + b)(a – b)
(d) ab + b – a – 1

Answer: C

Question. Number of square plots for green cover is.
(a) 1
(b) 2
(c) 3
(d) 4

Answer: B

Question. If we increase both a and b by 1, new product is.
(a) ab + 1
(b) (a + 1)(b + 1)
(c) a + b
(d) ab + a + b

Answer: B

Question. Sum of squares of two consecutive numbers m and m + 1 is.
(a) m square + (m + 1) square
(b) (m + m + 1) square
(c) m + m + 1
(d) 2m square

Answer: A

Question. Value of 197 square using Sridharacharya method is.
(a) 38809
(b) 38800
(c) 40000
(d) 19700

Answer: A

Question. The expression for 5 less than the square of x is
(a) (x – 5)²
(b) x² + 5
(c) 5 – x²
(d) x²– 5

Answer: D

Question. In a 2 by 2 calendar square, diagonal products are 48 and.
(a) 48
(b) 55
(c) 50
(d) 60

Answer: B

Question. Product ab increases by a + b + 1 when each number is increased by.
(a) 0
(b) 1
(c) 2
(d) 10

Answer: B

Question. In pattern description, Step y describes basic.
(a) Units
(b) Zeros
(c) Circles
(d) Squares

Answer: A

Question. In calendar square, diagonal products difference is always.
(a) 1
(b) 7
(c) 14
(d) 0

Answer: B

Question. In a calendar, a 2 × 2 square has numbers n, n + 1, n + 7, n + 8. What is the difference between the diagonal products?
(a) 1
(b) 7
(c) 8
(d) 14

Answer: B

Question. Rule for 1001 multiplication is same as rule for.
(a) 10
(b) 11
(c) 101
(d) 100

Answer: C

Question. To get actual area of 55 square, we add back area of.
(a) Big square
(b) Rectangle
(c) Small square
(d) Circle

Answer: C

Question. Aditya's method says area is 2 times area of.
(a) ABCD
(b) EFGH
(c) JKLM
(d) PQRS

Answer: C

Question. Squares of even numbers are always multiples of.
(a) 2
(b) 3
(c) 4
(d) 5

Answer: C