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

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 ______.

The standard form of 12340000 is ______.

The usual form of 3.41 × 10⁶ is ______.

The usual form of 2.39461 × 10⁶ is _______.

To add the numbers given in standard form, we first convert them into numbers with ______ exponents.

The standard form for 32,50,00,00,000 is ______.

The standard form for 0.000000008 is ______.

The usual form for 2.3 × 10^–10 is ______.

The standard form for 0.000037 is 3.7 × 10^–5.

The standard form for 203000 is 2.03 × 10⁵.

The usual form for 2 × 10^–2 is not equal to 0.02.

Large numbers can be expressed in the standard form by using positive exponents.