Secondary School (English Medium) (5 to 8) इयत्ता ८ - CBSE Question Bank Solutions

How many edges does the following solid have?

Hexagonal Prism

How many edges does the following solid have?

Kaleidoscope

Find the number of faces in the given shape:

The sum of –7pq and 2pq is ______.

a(b + c) = a × ____ + a × _____.

On simplification `(3x + 3)/3` = ______.

Add:

7a²bc, –3abc², 3a²bc, 2abc² 

Add:

9ax + 3by – cz, –5by + ax + 3cz

Add:

xy²z² + 3x²y²z – 4x²yz², – 9x²y²z + 3xy²z² + x²yz² 

Add:

5x² – 3xy + 4y² – 9, 7y² + 5xy – 2x² + 13

Add:

2p⁴ – 3p³ + p² – 5p + 7, –3p⁴ – 7p³ – 3p² – p – 12

Add:

3a(a – b + c), 2b(a – b + c)

Add:

3a(2b + 5c), 3c(2a + 2b)

Multiply the following: 

(ab + c), (ab + c)

The standard form for 0.000064 is ______.

The standard form for 234000000 is ______.

The usual form for 2.03 × 10^–5 is ______.

Very small numbers can be expressed in standard form by using ______ exponents.

Very large numbers can be expressed in standard form by using ______ exponents.

The standard form of `(1/100000000)` is ______.