Class 9 math Practice Tests

Class 9 Math Online Tests

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The MCQ *We can subtract two matrices A and B if their*: elements are same, order is same, rows are same and columns are same with "Matrices: Addition and Subtraction" App Download (Free) for school certificate. Solve matrices and determinants quiz questions, download Google eBook (Free Sample) for online school courses.

**MCQ 1**: We can subtract two matrices A and B if their

A) elements are same

B) order is same

C) rows are same

D) columns are same

b

**MCQ 2**: In real numbers, the additive identity is

A) 1

B) 3

C) 0

D) −1

c

**MCQ 3**: If A, B and C matrices are of same order and (a + b) + C = A + (b + c), this law is known as

A) Cramer's law

B) distributive law

C) commutative law

D) associative law

d

**MCQ 4**: A scalar is denoted by

A) n

B) k

C) r

D) a

b

**MCQ 5**: We can add two matrices having real numbers A and B if their

A) order is same

B) rows are same

C) columns are same

D) elements are same

a

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