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

Question. In 2 by 2 calendar, diagonal labels are a, a + 1, a + 7 and.
(a) a + 2
(b) a + 8
(c) a + 10
(d) a - 1

Answer: B

Question. To find 98 times 102, we use Identity.
(a) 1A
(b) 1B
(c) 1C
(d) 1

Answer: C

Question. Check mistake in -3p (-5p + 2q) giving p - 2q.
(a) No mistake
(b) Sign mistake
(c) Number mistake
(d) Letter mistake

Answer: B

Question. What is the product of the diagonals in any 2 × 2 square of calendar dates?
(a) Their difference is always 7
(b) They are equal
(c) Their sum is always 7
(d) Their product is always 7

Answer: A

Question. (p - 1)(p + 11) is equal to p square + 10p minus.
(a) 1
(b) 11
(c) 10
(d) 12

Answer: B

Question. Expansion of (b - 6) square starts with.
(a) b
(b) b square
(c) 6
(d) 36

Answer: B

Question. Area of square with sidelength 60 is.
(a) 360
(b) 3600
(c) 600
(d) 120

Answer: B

Question. 735 × 101 = _______
(a) 74245
(b) 74345
(c) 74235
(d) 74525

Answer: C

Question. Square of sidelength 5 has area.
(a) 10
(b) 15
(c) 25
(d) 50

Answer: C

Question. General formula for (a + b) times (c + d) is.
(a) ac + ad + bc + bd
(b) ab + cd
(c) a + b + c + d
(d) abcd

Answer: A

Question. Number of circles in Step 15 will be 15 square plus.
(a) 15
(b) 30
(c) 45
(d) 1

Answer: B

Question. Which ancient mathematician referred to the use of the distributive property for multiplication as ‘khanda-gunanam’?
(a) Euclid
(b) Aryabhata
(c) Brahmagupta
(d) Sridharacharya

Answer: C

Question. Mathematical statements showing two expressions are equal are called.
(a) Questions
(b) Identities
(c) Lines
(d) Numbers

Answer: B

Question. 3874 times 11 is same as 3874 times (10 + _).
(a) 0
(b) 1
(c) 11
(d) 10

Answer: B

Question. Sridharacharya gave method for.
(a) Addition
(b) Squares
(c) Division
(d) Circles

Answer: B

Question. If 12 × 15 = 180 then 13 × 16
(a) 228
(b) 198
(c) 218
(d) 208

Answer: D

Question. Brahmagupta wrote this book.
(a) Ganita
(b) Brahmasphutasiddhanta
(c) Algebra 1
(d) Lilavati

Answer: B

Question. (k + 1) square minus 1 is equal to.
(a) k square + 2k
(b) k square + 1
(c) 2k
(d) k

Answer: A

Question. Formula for (a - b) square is.
(a) a square - b square
(b) a square + b square - 2ab
(c) a + b - 2
(d) ab - 2

Answer: B

Question. When multiplying a number by 11, what is the general rule described in the chapter for a 4-digit number ‘dcba’?
(a) Add ‘dcba’ to itself.
(b) Add ‘dcba’ to ‘dcba0’.
(c) Multiply each digit by 11.
(d) Multiply by 10 then add ‘dcba’ then divide by 10.

Answer: B