Page 34 - Viva ICSE Computer Studies 7 : E-book

Let’s understand with the help of an example.
Subtract 11 from 101.

1 Borrow
1 0 1
_
1 1
0 1 0

Binary Multiplication

Binary multiplication is very similar to multiplication of decimal numbers. The following table
illustrates the multiplication of two binary digits.

A B A × B
0 0 0 × 0 = 0

0 1 0 × 1 = 0
1 0 1 × 0 = 0
1 1 1 × 1 = 1

Let’s understand with the help of an example.

Multiply 1001 with 111.
1 0 0 1

× 1 1 1
1 0 0 1
1 0 0 1 ×
1 0 0 1 × ×
1 1 1 1 1 1

Binary Division

Binary division is very similar to division of decimal numbers.

Let’s understand with the help of an example.

Divide 1101 with 10.

110  Quotient
Divisor 10 1101  Dividend
10

10
10
001  Remainder

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